How to choose a drill or hammer drill

Table of Contents:

Drill mixer

A drill mixer differs from a conventional universal drill by the presence of special attachments in the kit, which allow you to conveniently mix liquid and semi-liquid compositions. The design of the tool, as a rule, provides for special handles for a comfortable grip during mixing. The drill mixer is suitable for mixing putties, adhesives, paints and other mortars up to 10 liters in volume and allows a more thorough mixing than with a manual process.

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Drill power

The power of the drills on sale ranges from 300 to 1500 watts. The higher this indicator, the more loads the tool can handle. For professional models, the power is usually higher than 800-1000 watts. The weight of the device also grows with power, so there is no point in taking a drill with a large margin for this parameter. your hands will get very tired during work. On the contrary, if you take a model with insufficient power, then your hands will get tired of the fact that you will have to apply additional load during drilling.

If you have to work with materials no stronger than brick, then you can stop at an 800 W drill. If you plan to drill concrete or constantly use a drill as a construction mixer, then you will need a more powerful model.

Drill chuck type

Depending on how the drill is fixed, drill chucks can be:

  • a key or toothed chuck fixes the drill with a key, clamps it with three symmetrical “petals”. It is believed that such a mount allows you to more securely hold the drill, therefore it is used in powerful and impact drills. The downside is the inconvenience when replacing the drill, since it is necessary to use a special key. By the way, he can get lost, and then the time for replacement increases several times. Some craftsmen tie the key to the drill;
  • The quick-clamping mechanism allows for very quick change of drills using only a little manual effort. In terms of reliability, it is not inferior to the key chuck, but still it is used only in drills with low power, designed to work with not very hard materials. In terms of durability, the mechanism is inferior to the key.

Also, when choosing a drill, pay attention to the diameter of the chuck fit. The minimum value may approach 0, but usually it is not necessary to use a grip less than 1.5 mm. The maximum value can be 10-13 mm and even 16 mm for powerful drills.

Shaft rotation speed and its adjustment

The rotational speed of the drill shaft at idle speed can reach 3500 rpm, but such a frequency is not always necessary. The higher this parameter, the faster it will be possible to drill the hole and the smoother its walls will be. High revs are more necessary in order to grind and polish the surface, but they will also come in handy with impact work. In order to tighten the screw, 400-500 rpm will be enough.

The versatility of the tool is provided by the rotational speed switch. In the simplest models, a step switch is used, in the more advanced ones. an electronic one that clearly reacts to the force of pressing. If you press hard, we get the maximum speed.

A speed limiter and a soft start will also be helpful. The latter allows you to smoothly accelerate the engine and provides a gradual increase in speed from minimum to required. This allows you to get rid of jerks at the start, overloads and drilling errors.

Drill types by purpose

Depending on what set of functions the drill has, the following main types of tools are distinguished:

  • an ordinary drill, it is sometimes called a hammerless drill;
  • hammer drill;
  • drill screwdriver;
  • drill mixer;
  • angle drill.

All these modifications are quite different from each other, including in price, therefore, when buying, it is so important to be aware of the purposes of using the tool.

The purpose of the drill. Difference from a hammer drill and screwdriver

The main purpose of the drill is to drill holes in various materials. A conventional drill easily handles metal, wood, drywall and other not particularly dense surfaces. The hammer drill can easily drill through concrete, stone and brick. Special-purpose devices can replace a screwdriver and a construction mixer, and if you have special attachments, you can grind surfaces with a drill.

An impact drill can replace a hammer drill, since, in addition to rotation, it also has an impact force. That is why it can be used to easily make a hole in concrete. On the other hand, if you are going to work mainly with concrete and other dense materials, then it is better to take a hammer drill. it is designed for constant loads of this kind and will last longer. Otherwise, the path of the hammer drill and the hammer drill diverge. The designs of these devices are radically different, so the hammer drill can handle many processes that require high power. It is used for chipping walls, chipping tiles, chipping off bricks. The main function of a hammer drill is to hammer, while for a drill this function is to drill.

The difference between a drill and a screwdriver can easily be found by a person who generally does not know much about repair work. If the drill drills holes, then a screwdriver is needed to tighten and unscrew screws and bolts. The rotation speed of the screwdriver chuck is much lower, and this tool has fewer settings. There are drills with screwdriver function. this is a versatile tool at home. If you drill and screw in self-tapping screws at the same frequency, then it is better to take two separate tools so that the drill does not suddenly fail.

Drilling diameter

The instructions for the drill indicate what the maximum and minimum hole a drill can make in wood and metal; for some models, this parameter is also added for brick and concrete. If you insert drills with a larger diameter than those for which it is designed, the tool will very quickly overheat and break. The minimum diameter, as a rule, is 0.3-0.6 mm, the maximum is 30 mm, but often this parameter does not exceed 10-15 mm.

Angle drill

As the name suggests, such a tool is designed for drilling holes in the most inaccessible and narrow places, where you cannot get to with a conventional drill. The design of the device is characterized by the presence of a bevel gear and the location of the rotating shaft perpendicular to the body. Such drills, as a rule, have low power and there is no need to talk about any impact function here.

An angle drill is a very specific tool, so it is better to take a regular model and, if necessary, use a special attachment. it is cheaper and in most cases wiser.

Drill types by purpose

Depending on what set of functions the drill has, the following main types of tools are distinguished:

  • an ordinary drill, it is sometimes called a hammerless drill;
  • hammer drill;
  • drill screwdriver;
  • drill mixer;
  • angle drill.

All these modifications are quite different from each other, including in price, therefore, when buying, it is so important to be aware of the purposes of using the tool.

The purpose of the drill. Difference from a hammer drill and screwdriver

The main purpose of the drill is to drill holes in various materials. A conventional drill easily handles metal, wood, drywall and other not particularly dense surfaces. The hammer drill can easily drill through concrete, stone and brick. Special-purpose devices can replace a screwdriver and a construction mixer, and if you have special attachments, you can grind surfaces with a drill.

An impact drill can replace a hammer drill, since, in addition to rotation, it also has an impact force. That is why it can be used to easily make a hole in concrete. On the other hand, if you are going to work mainly with concrete and other dense materials, then it is better to take a hammer drill. it is designed for constant loads of this kind and will last longer. Otherwise, the path of the hammer drill and the hammer drill diverge. The designs of these devices are radically different, so the hammer drill can handle many processes that require high power. It is used for chipping walls, chipping tiles, chipping off bricks. The main function of a hammer drill is to hammer, while for a drill this function is to drill.

The difference between a drill and a screwdriver can easily be found by a person who generally does not know much about repair work. If the drill drills holes, then a screwdriver is needed to tighten and unscrew screws and bolts. The rotation speed of the screwdriver chuck is much lower, and this tool has fewer settings. There are drills with screwdriver function. this is a versatile tool at home. If you drill and screw in self-tapping screws at the same frequency, then it is better to take two separate tools so that the drill does not suddenly fail.

Impact drill

A hammer drill is needed for those who are going to drill holes in concrete, brick, stone and other hard materials. Such a tool costs less than the simplest punch, but has some limitations. Such a drill will not withstand constant work with dense materials. it will quickly break. In addition, frequent drilling in concrete and stone can negatively affect the accuracy of conventional drilling. If you have to work regularly with dense materials, then it is better to take a punch.

The impact drill gets its ability to punch through hard materials thanks to its special design. During operation, not only rotational action is transmitted to the drill, but also impact. If in the hammer drill the blow is provided due to a complex electromechanical or electro-pneumatic unit, then in the drill the blow is achieved due to the presence of two ratchets. One is located inside the drill, the other is attached to the chuck. When the two elements are connected, the chuck and drill begin to move in the axial and translational direction, thus providing the function of chiselling, or impact. If necessary, the impact function can be turned off, the ratchets open and the drill works as usual. However, in some models, the option to turn off is not provided. be careful when choosing.

A drill with an impact function is more expensive than a conventional drill, but cheaper than a hammer drill. Plus, it is also lighter than a hammer drill, so it can be called a versatile household tool. When choosing a hammer drill, pay attention to the power of the tool. For the impact function to be normal, this figure must be at least 800 watts. Also pay attention to the reverse rotation function and the presence of a safety clutch.

Drill power

The power of the drills on sale ranges from 300 to 1500 watts. The higher this indicator, the more loads the tool can handle. For professional models, the power is usually higher than 800-1000 watts. The weight of the device also grows with power, so there is no point in taking a drill with a large margin for this parameter. your hands will get very tired during work. On the contrary, if you take a model with insufficient power, then your hands will get tired of the fact that you will have to apply additional load during drilling.

If you have to work with materials no stronger than brick, then you can stop at an 800 W drill. If you plan to drill concrete or constantly use a drill as a construction mixer, then you will need a more powerful model.

Shaft rotation speed and its adjustment

The rotational speed of the drill shaft at idle speed can reach 3500 rpm, but such a frequency is not always necessary. The higher this parameter, the faster it will be possible to drill the hole and the smoother its walls will be. High revs are more necessary in order to grind and polish the surface, but they will also come in handy with impact work. In order to tighten the screw, 400-500 rpm will be enough.

The versatility of the tool is provided by the rotational speed switch. In the simplest models, a step switch is used, in the more advanced ones. an electronic one that clearly reacts to the force of pressing. If you press hard, we get the maximum speed.

A speed limiter and a soft start will also be helpful. The latter allows you to smoothly accelerate the engine and provides a gradual increase in speed from minimum to required. This allows you to get rid of jerks at the start, overloads and drilling errors.

Household and professional drills

Like many other power tools, drills are divided into two principal types:

  • household, for home use;
  • professional.

Sometimes a transitional type is also distinguished. semi-professional drills. The principle of operation for household, professional and semi-professional devices is the same. the difference lies in power, weight, price, set of functions and some other features.

A household drill for performing the vast majority of simple household repairs will be preferable. Its advantages, in addition to the lower price compared to a professional tool, include:

  • lightweight design, so it is easier to work with the tool;
  • versatility. Household drills are often equipped with additional functions, such as a screwdriver and a mixer, and there are a lot of components in the case with them. Professional drills are focused on performing a specific task, therefore, in terms of versatility, they are inferior;
  • good protection and well-thought-out design makes working with a household drill more convenient and safe, which is very important for an inexperienced user;
  • household drills are generally warranted higher than professional tools.
On the other hand, you cannot use a household tool for more than 4 hours a day, otherwise the drill will quickly break. The optimal time of continuous work is 15-20 minutes, after which the tool is allowed to rest and cool down for about the same amount of time, then you can return to work again. The thing is that less powerful engines and less sturdy materials are used to assemble household models. This does not mean that the drill will break quickly. it means that it is designed for light or irregular loads.

If you have to regularly work with a drill for 5 or more hours a day, then it is better to take a professional tool. It is distinguished by the presence of a powerful engine that easily withstands solid loads without overheating or breaking down. A professional drill can work continuously for more than an hour and about 7-8 hours a day, with small breaks. Such a tool is more expensive than a household one, less versatile, heavier, but better protected from dust and moisture, and a professional cannot do without it.

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Semi-professional drills are a fairly limited class of devices. Transitional models can be represented by household drills with some properties from professional, or professional, but without any elements.

Which drill to choose depends on what kind of work and how often you are going to do it. If you need it in order to hang a shelf or a picture, if necessary, then you can safely stop at the household version. If repairs are your main or additional income, then it makes sense to consider professional drills.

Conventional drill

This is a drill without any bells and whistles. It does not have an impact function, so it will only be possible to drill with it in wood, drywall, metal and other not very hard surfaces. This tool is suitable for minor repairs in the country, in a barn, a wooden house. Conventional drills without impact function can be cordless or powered.

What is the difference between a hammer drill and a hammer drill?

Although the two power tools work in the same way, the fundamental difference lies in the design of the impact system. The drill is equipped with two gear mechanisms or ratchets, which give the drill a translational movement simultaneously with rotation. The percussion system of the hammer drill is arranged in a completely different way. It can be electromechanical or electro-pneumatic. In the first case, the energy for the translational movement of the core is created by two electromagnetic coils, and in the second, a pneumatic mechanism with a crank drive or a special piston system with a rolling bearing.

But this, of course, is not all that distinguishes a drill from a hammer drill. To better understand this, you need to look at the applications of both tools and the attachments they use. This will answer the question. which hammer drill or hammer drill to choose?

The main differences between a drill and a hammer drill

A drill is a tool for drilling holes, and a hammer drill is for punching. This is the main difference between a drill and a hammer drill. But there is one but. Drills are divided into percussion and non-impact drills, and in relation to the former, the answer to this question no longer seems so obvious and for a start it will be useful to find out how the impact drill differs from the usual one.

Using a punch

The application of this power tool is much more narrow and is aimed at breaking various solid materials. Using a puncher, you can:

  • Punch a hole in concrete or brick.
  • Knock down ceramic tiles or plaster.
  • Split a hard surface.
  • Make grooves on a concrete or brick wall.

When working with a hammer drill, drills are not used, as is the case with a drill, although some of their types, for example, crown, are still used, but drills, chisels and peaks. The main focus of the hammer drill is its impact function. All the capabilities of the instrument are aimed at its high-quality performance. In order to successfully and long enough to hammer concrete and stone, the perforator has a sufficiently large power, more than an impact drill. In addition, the entire construction of the tool is designed to perform one task, namely, chiselling of hard materials. The hammer drill is absolutely unsuitable for drilling holes in wood and metal.

What does hammer drill mean?

The principle of operation of this power tool is based on the translational movement of the drill chuck while rotating it. Thus, in such a tool, the drill, in addition to rotating, also performs blows, thanks to the built-in eccentric. This is how a hammer drill differs from a hammer drill. In addition, the fundamental difference is the ability to turn off the impact function on almost all modern models of impact drills.That is, it is easy to turn such a drill into a hammerless drill, but a hammerless drill will not be able to transform into a hammer drill in the same way. The question arises, why then make shockless models at all? The answer lies in the scope of such a tool.

The hammerless drill demonstrates the smoothest drill stroke, thanks to which the holes made with it are highly accurate. Therefore, hammerless drills are used for delicate work, for example, for drilling holes in pieces of wood that are prone to splitting or in thin metal sheets. Having figured out how an impact drill differs from a non-impact drill, it’s time to return to hammer drills.

Using a drill

A drill, and especially a hammer drill, is an extremely versatile tool, and its versatility is, to a large extent, how a hammer drill differs from a hammer drill. With the help of a drill, changing only the attachments, you can:

  • Drill various materials: wood, metal, ceramic tiles, plastics, glass and many others, almost everything used in construction.
  • Make large holes with core drills.
  • Drill holes in concrete and masonry when the impact function is turned on and using drills with victorious tips.
  • Grind or sand any surface using brushes or grinding wheels as attachments.
  • Work as a mixer for mixing paints or building mixtures.

When choosing a drill, its impact function is not a determining criterion. Simply put, punching holes in concrete is far from its main function. Therefore, it will not be possible to achieve significant results in this matter with the help of a drill. The impact function is more of an auxiliary or additional function, and if you need a tool for making holes by punching, then the impact drill will only partially meet your expectations.

The drill mechanism is designed only for its short-term operation in shock mode, for making holes in a brick wall, for example. And then, too intensive drilling of even a relatively soft brick will surely lead to the failure of the entire percussion mechanism, and what can we say about concrete. The entire design of the drill and its technical characteristics, including power and speed, indicate a different purpose of the tool, on different types of which we stopped above. As you can see, the scope of application of an impact drill is quite wide, but what about a hammer drill?

Drill or hammer drill: which is better?

To pose the question in this way would be categorically wrong. Indeed, despite the seeming at first glance similarity in functions, at least in one, an impact drill and a hammer drill are completely two different tools.

If we talk purely about punching holes in hard materials, then here the hammer drill has an obvious advantage. Firstly, in power, and secondly in functionality, because the hammer drill has two modes of operation: simple drilling and hammer drilling. At the same time, the hammer drill is capable of boasting three: rotation, rotation with a blow and just a blow. But the drill is much superior to the hammer drill in versatility. This is another answer to the question. punch and drill, what’s the difference? And in principle, as already noted, it is not entirely correct to compare these two power tools, each of them serves for its own purposes. Even outwardly, an impact drill and a hammer drill are not alike. If the latent power is guessed at first glance in the hammer drill, then the drill, including the percussion drill, is a much less aggressive tool in its appearance.

When to choose an impact drill?

  • Rare use of tools for drilling small holes. If you need to drill something periodically, but not too often, there is no point in buying a rock drill. A drill is more than enough to hang a painting, drill through metal, etc. When storing the tool, the drill takes up less space than a hammer drill.
  • Working with wood and metal parts. the drill will handle these materials. Wood can drill any tool, and when working with steel or iron, a high-quality drill plays an important role.
  • Tightening and unscrewing fasteners. A drill is much more convenient to work with screws and self-tapping screws, even if it does not have an impact mode. If you use a hammer drill for this purpose, the percentage of rejects. damaged fasteners will increase, and the comfort during work will decrease.
  • Preferably work with relatively soft materials. If you do not need to drill often in concrete, stone or brick walls, then it is quite possible to do without a hammer drill.

When is it worth choosing a puncher?

  • Working with hard materials. The hammer drill is much better at handling stone, concrete and brick. Its percussion mechanism generates an impact force sufficient to drill and destroy concrete, as well as large fragments of stone, showing itself many times more effective than a drill.
  • Drilling large holes. The hammer drill can work with large diameter bits, which is not the case with a drill. For example, if drills are rarely able to create holes in concrete with a diameter of more than 20 mm, then a hammer drill (when using a crown) can drill holes with a diameter of up to 120 mm.
  • Dismantling. One of the differences between a hammer drill and a drill is that it has an impact mode without drilling (chiselling). With its help, you can remove tiles, plaster from the walls, gouge walls, etc. The drill cannot cope with such tasks. it is not intended for them.

The main differences between a hammer drill and a hammer drill

Rotary hammer and hammer drill are tools that can partially replace each other. Both are capable of punching holes, working with hard materials, and using impact in their work. For this reason, one often hears questions about how these tools differ in general. Throughout the article, we will analyze what an impact drill and perforator are, what are the features of their design.

The difference between a hammer drill and a hammer drill

The drill and hammer drill have different mechanisms of impact. The very design of these instruments suggests that they need to be handled differently when using the percussion mode:

  • In the case of an impact drill, the operator has to apply additional force, press on the tool. The stronger the impact on the drill, the faster the drilling takes place. But even with maximum effort, the impact force of the drill will be several times less than the lightest perforator.
  • When using a hammer drill, force only needs to be applied to hold the tool with confidence. On average, the pressure should not exceed 2-3 kg.

Impact function. basic for a hammer drill. But in a drill, even a percussion one, this is only additional functionality. On the other hand, this makes the drill a versatile and multifunctional tool.

The correct choice of tool should depend on what kind of work you are going to do. In short: a drill is suitable for minor repairs, carpentry, work with fasteners, and a hammer drill is suitable for constant work with concrete, stone and brick, dismantling and chipping walls.

Impact drill or hammer drill. what to choose?

In this section, we decided to give examples of the effective use of a rotary hammer and impact drill to make it easier for you to choose a tool for yourself.

What is a drill?

A drill is a handheld electric tool used to drill holes in materials or parts, and to tighten and unscrew fasteners. The principle of its operation is that the motor converts electrical energy into rotation, and then transfers it to the nozzle. If a drill acts as a nozzle, the drill can be used for drilling, if the bit is used for working with fasteners. Drills are widely used in many areas, including construction, repair work, manufacturing, assembly work, carpentry, etc. Electric drills are divided into two subcategories: impact drills and hammerless drills.

A hammer drill differs from a hammer drill in that it has an additional mode. hammer drilling. The impact is generated by the interaction of the ratchets with the shaft. This allows the drill to tackle hard materials such as stone, brick and concrete. She cannot completely replace the punch, since she lacks power and impact force.

What is a puncher?

A hammer drill is also an electric tool, which differs from a drill in the details of its design and the specifics of use. In addition to the rotation of the nozzle, it also gives it a reciprocating motion. To create this movement, a special unit is provided in the perforator: a swinging (drunk) bearing. for straight perforators, and a crank mechanism. for barrel drills. Both units convert rotary motion into reciprocating and interact with a piston that transmits a shock impulse to the nozzle.

Despite the fact that the hammer drill is similar to a drill, it is much more often used for dismantling work and, as a rule, is not used for working with fasteners. This is due to the greater impact force of the hammer drill, its heavy weight, and the lack of chiseling mode in the drill.

An impact drill is a tool that is suitable for twisting and unscrewing fasteners and making small / medium holes, preferably in wood, metal, tile and plastic. The rock drill is better suited for difficult jobs, demolition and making large holes in concrete. By understanding the features of these tools, you can always make the right choice.

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CHOOSING A DRILL AND PUNCHER

The master on the shelves will see rotary hammers, percussion drills and hammerless drills. They differ in that drills drill holes, and a hammer drill knocks them out with strong impacts on the surface, although in some modes you can drill.

Drill

Professionals tend to use hammerless drills because they are the ones that maximize drilling accuracy, for example, in furniture manufacturing or in a car service center. An impact drill is also suitable for home use. Leroy Merlin has a large selection of such devices at always low prices. The Dexter hammerless drill will cost from UAH 499, and the Dexter hammer drill. UAH 632.

Impact drill Bosch. UAH 1479-1812 with a power of 550 W.

Metabo. hammer drill. from UAH 1792, hammerless. from UAH 2240 with a power of 650 W.

Dewalt. from 1997 UAH for a hammerless drill, the impact option will be somewhat more expensive. from 1999 UAH (keyless chuck, multi-position handle, drilling depth limiter).

Hammer drill Makita. 2018 UAH 680 W.

When choosing, pay attention to:

  • intensity of use;
  • impact force and power;
  • the material you will work with to choose the right drill;
  • drill with self-clamping chuck. more convenient to work.

This article contains a lot of useful information for those who make repairs and are looking for a power tool.

The most important tool in the owner’s arsenal:

  • screwdriver;
  • angle grinder or angle grinder;
  • drill (impact or non-impact)
  • perforator.

You should immediately decide: you are a supporter of battery devices, which, by the way, are the most popular among users, or you prefer wires in the outlet. Leroy Merlin has a wide selection of power tools with and without battery that comply with EU standards. For example, they sell devices that are safe for the owner as well as the environment with Ni-Mh (nickel metal hydride) or Li-Ion (lithium-ion) batteries. They are durable and less toxic.

CHOOSE an angle grinder

an angle grinder is indispensable in the arsenal of any owner. It is cut, polished, polished and so on. Depending on the material with which you have to work, discs for metal, concrete are bought for an angle grinder. If this is a tree. the disk can only be for this material. Be aware that cutting wood with discs for other purposes is prohibited due to safety reasons. the angle grinder operates at speeds of up to 4500 per minute, and at idle speed reaches 11000. It cannot be used, even if the speed is regulated. it is dangerous.

If you choose an angle grinder:

  • pay attention to power. The manufacturer indicates the power consumption on the box;
  • intensity of use. Metabo (UAH 999-5660), Bosch (UAH 1199-3499), Makita (UAH 1388-3645), Dewalt (from UAH 1999) are suitable for professional work. Dexter (UAH 655. 1799);
  • types of work: for grinding, polishing, stripping, mechanical speed control is needed;
  • cutting depth: 230th diameter. up to 70 mm; 180th diameter. up to 55 mm; 125th diameter. up to 35 mm;
  • Learn about additional features and benefits: soft start, anti-jamming disc, anti-vibration handle and so on.

Discs can be purchased in the department “Tools” for various repair tasks at low prices.

The angle grinder has its own safety rules at work:

  • the handles should only be on top. this is the only way you will have a strong grip. You protect yourself and others from the fact that the angle grinder can fly out of your hand in the event of a so-called biting disc;
  • sparks should fly towards the master. It is safe, because you are protected by a special casing. If sparks fly in the opposite direction from you, it is extremely dangerous, since the device can escape from your hands and cause serious injuries;
  • when cutting metal, you cannot fix it on both sides. One side should be free so as not to block the angle grinder;
  • in case of damage to the hardened layer, the abrasive of the disc may not withstand the speed of rotation and fly apart;
  • the key that comes with the kit is designed to unscrew. the angle grinder is designed so that the nut is tightened during operation;
  • when choosing a disk, keep an eye on the rotation speed. The higher it is, the smaller the disc diameter.

Secrets of working with a drill and hammer drill:

  • use protective equipment before starting work with a hammer drill or drill, clothes should not interfere with movement;
  • prepare surfaces correctly before starting work;
  • to make a perfect hole with a punch or drill, fix the material and fix the device firmly;
  • the hammer drill should not run dry. this leads to additional wear;
  • the hammer drill needs care. the gearbox, drill and chuck are treated with original grease;
  • let the punch rest after 180-200 holes;
  • do not push hard on the rock drill in the direction of impact or drilling;
  • for manual drilling, keep the device perpendicular to the surface for high quality work;
  • when working with wood, make a small hole with an awl or nail to fix the drill; tape the place you are going to drill, there will be no burrs and chips on the material;
  • when working with metal, cool the drill in soapy water or grease; to drill a larger hole, first make a small one, and then expand it with a larger diameter; for convenience, put a bar underneath;
  • when working with concrete, stone or brick, use special drills with carbide inserts and be sure to monitor the cooling;
  • To make holes in glass or tiles, you need special taper carbide-tipped drills, which are sold in Leroy Merlin hypermarkets. To fix. stick to the surface, for example, an insulating tape;
  • it is recommended to start drilling at low speeds without pressing hard on the surface.

CHOOSING A SCREWDRIVER

When choosing a screwdriver, pay attention to how intensively you will use it, the type and capacity of the battery. Be sure to hold the device in your hands. it should be comfortable and suitable for its weight.

at Leroy Merlin start at UAH 499. For work with furniture, laminate and windows, a Dexter screwdriver in a case with durable plastic and a keyless chuck will cost 799 UAH. It is convenient to work with this device.

The lightweight and compact Metabo screwdriver for 1999 UAH has 34 torques, which is quite suitable for the professional category. Includes a removable chuck and the ability to install bits directly into the spindle. The battery charges in one hour and holds a charge for two hours.

DIFFERENCE BETWEEN PROFESSIONAL AND HOUSEHOLD POWER TOOLS

The main difference between a professional power tool and a household power tool is how often you intend to use it. Household can be used for a long time and if necessary. Professionals, on the other hand, work intensively 24/7.

Leroy Merlin experts noted that a new trend in power tools is brushless motors. They have proven to be durable. Such an engine practically does not heat up and can do more work. These devices are quiet in operation, and they have 10 times longer life compared to a brush counterpart.

“Green light for summer renovation”: the choice of power tools, the rules of work and how to save money on the purchase

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TSN.ua together with a chain of construction hypermarkets Leroy Merlin in a special project “Green light for summer renovation” revealed the rules for choosing a power tool, learned life hacks and how to save money on a purchase.

If a good housewife is characterized by the order of the house, then the owner is skillful work with a good power tool, which becomes a real helper. In the department “Tools” Leroy Merlin hypermarkets have a large assortment of world famous brands. In addition, there are Dexter own brand power tools at low prices.

Perforator

When choosing a hammer drill, it is necessary to take into account the type of consumption, electric motor power, impact force and operating modes. To perform household tasks, a device with a power of 600-1500 rpm is enough. For the more professional, powerful devices are chosen. At the same time, buy a perforator for repairing a room with an impact force of 1.2 to 3.0 J.

In Leroy Merlin hypermarkets, the Dexter perforator with a power of 750 W costs 999 UAH, with a power of 1500 W. 2199 UAH.

The cost of the Dewalt puncher starts at UAH 3499.

Perforator Metabo. from UAH 3697 with a power of 800 W.

The Makita hammer drill with a power of 780 W costs UAH 4099.

How to choose a drill or hammer drill

A rather logical question may arise: “Why did we immediately start talking about an impact drill, and not about an ordinary drill?” The answer is very simple. Today, ordinary drills are almost antiques and are not mass-produced by almost any manufacturer. Impact drills are put on stream. The technology of their production is so well-tuned that, if you imagine a situation where there would be a need to produce just drills, the latter, due to the need to reorient the production lines, would cost significantly more than their counterparts with additional functions. Simply put, you can find an ordinary drill somewhere, but its price will certainly not be lower than that of an impact drill, and its capabilities will be very limited.

Now, in fact, about the possibilities. The hammer drill can perform the following functions: Drilling holes in various materials (wood, plastics, various metals, etc.) like a conventional drill. By the way, in almost all impact drills, the impact function can be turned off with a simple switch;
making holes in hard materials (for example, brickwork). It should be noted that when drilling with a blow, the hole is made much faster and with less effort;
screwing / unscrewing screws, self-tapping screws and screws. This function requires some skill, but with the use of a hammer drill (working in the “no impact” mode), everything is much faster and easier.

The presence of a perforator in your arsenal, in addition to the functions listed above, also provides such opportunities: drilling holes in particularly hard materials (for example, reinforced concrete or stone);
chiselling with various types of chisels. This feature can be especially useful if you need to make a small gap or gutter in a solid wall / floor. It should be noted that there are models of rock drills that work like a jackhammer (this mainly applies to heavy professional rock drills). For such perforators, it is possible to turn off the rotation of the working tool.

I would like to say a few words about what is the difference between an impact drill and a hammer drill. The principle of operation of the hammer drill is as follows: there are two gear ratchets in contact. When the tool is operating in the impact mode, you, by pressing it on the work surface, make the drill jump “along their teeth.” The disadvantage of this principle of operation is the relatively small amplitude of the impact, a high degree of recoil during operation, as well as the need to apply considerable effort to drill hard materials. In addition, with the constant work of the drill with hard surfaces, the teeth of the ratchets wear out rather quickly and they (ratchets) have to be replaced with new ones.
The hammer drill is devoid of all these drawbacks, since its internal structure has a number of fundamental differences. The mechanism of the electro-pneumatic hammer drill in some details resembles the device of an automatic weapon. Without going into the intricacies, let’s just say that a hammer drill is, first of all, a more durable and powerful device, and especially from the point of view of drilling holes in hard materials. The speed of passage of rock drills is much higher, the recoil is lower, etc.

Why Buy an SDS Plus Rotary Hammer Action Drill?

Then a reasonable question arises: “Why shouldn’t everyone use only punchers?” We answer:

A few words about the main characteristics of drills and hammer drills.

In the technical passport of almost any manufacturer’s company, the following main characteristics of the power tool are highlighted:

Rated power. On the one hand, it will demonstrate how quickly and easily your new assistant will cope with the task, and on the other hand, it will warn you about the possible need to replace burnt-out plugs;
RPM or idle speed. This characteristic will tell you about the degree of freedom when working with various materials and accessories (for example, when grinding); 3) maximum drilling diameter in concrete, steel, wood. In order not to burn out the engine of your tool on the very first day of work, we strongly recommend not to go beyond these indicators. Well, every manufacturer will not forget to mention the specific capabilities of this or that model:
Rotation speed control. Most modern hammer drills and hammer drills have the ability to adjust the rotational speed or rotational speed of the drill. The rotation speed depends on the force of pressing the start button. Many models are equipped with a special dial for the maximum speed. This means that you press the trigger all the way, and the rotation speed is at your chosen level. In addition, there are models where a special processor, depending on the type of material set and the diameter of the drill determined by the drill itself, selects the optimal rotation speed and maintains it regardless of the load on the tool (all, of course, within reasonable limits). I would also like to mention two-speed drills. In such models, for a more rational use of the power of the tool, a mechanism is used that resembles the principle of a car gearbox;
Switch locking button. Its presence will allow you, if you need a long-term operation of the tool, not to press on the “trigger” constantly;
Reverse function. This is the ability to rotate the drill in both directions. This function is very convenient if you need to unscrew a screw or self-tapping screw, especially when it is not screwed in manually, but with your own drill.

Chucks for drills and hammer drills.

Drills are currently equipped with two types of cartridges:

Serrated (chuck with key). Traditional chuck, in which the drill is fixed with a special key (which, in turn, can be lost);
Keyless. A small hand force is sufficient to secure the drill in such a chuck. But make no mistake about the strength of such an attachment. The drills are fixed in them no worse, but the absence of the need for a key as such is great. After all, you cannot lose what is not. Both types of these chucks are three-jawed, so you can easily fix attachments. screwdrivers, etc. in them. The SDS-PLUS fastening mechanism is usually used in rotary hammers, which allows you to use only special drills and does not require a key for fastening. Some models of rock drills use conventional cartridges.

Read more:  At What Speed To Drill Metal With A Drill

A little about electronics

There is no limit to improvement. There are, for example, models of drills, where not only the required rotational speed of the drill is automatically determined and maintained, but a whole intellectual process takes place when the screws are tightened. The drill independently, when tightening the first screw, will determine the optimal torque, and all the rest will be tightened in the same way. It is enough for such a contraption to indicate the type of material and the desired type of work, and the rest is a matter of technology.

How to choose a drill or hammer drill

Choosing a drill or hammer drill for construction work may not be as easy as it seems at first glance.

First of all, the type of tool chosen is important.

Impact drill

A rather logical question may arise: “Why did we immediately start talking about an impact drill, and not about an ordinary drill?” The answer is very simple. Today, ordinary drills are almost antiques and are not mass-produced by almost any manufacturer. Impact drills are put on stream. The technology of their production is so well-tuned that, if you imagine a situation where there would be a need to produce just drills, the latter, due to the need to reorient the production lines, would cost significantly more than their counterparts with additional functions. Simply put, you can find an ordinary drill somewhere, but its price will certainly not be lower than that of an impact drill, and its capabilities will be very limited.

Now, in fact, about the possibilities. The hammer drill can perform the following functions:

  • drilling holes in various materials (wood, plastics, various metals, etc.) as with a conventional drill. By the way, in almost all impact drills, the impact function can be turned off with a simple switch;
  • making holes in hard materials (for example, brickwork). It should be noted that when drilling with a blow, the hole is made much faster and with less effort;
  • screwing / unscrewing screws, self-tapping screws and screws. This function requires some skill, but with the use of a hammer drill (working in the “no impact” mode), everything is much faster and easier.

The presence of a perforator in your arsenal, in addition to the functions listed above, also provides the following opportunities:

  • drilling holes in particularly hard materials (for example, reinforced concrete or stone);
  • chiselling with various types of chisels. This feature can be especially useful if you need to make a small gap or gutter in a solid wall / floor. It should be noted that there are models of rock drills that work like a jackhammer (this mainly applies to heavy professional rock drills). For such perforators, it is possible to turn off the rotation of the working tool.

I would like to say a few words about what is the difference between an impact drill and a hammer drill.

The principle of operation of the hammer drill is as follows: there are two gear ratchets in contact. When the tool is operating in the impact mode, you, by pressing it on the work surface, make the drill jump “along their teeth.” The disadvantage of this principle of operation is the relatively small amplitude of the impact, a high degree of recoil during operation, as well as the need to apply considerable effort to drill hard materials. In addition, with the constant work of the drill with hard surfaces, the teeth of the ratchets wear out rather quickly and they (ratchets) have to be replaced with new ones.

The hammer drill is devoid of all these drawbacks, since its internal structure has a number of fundamental differences. The mechanism of the electro-pneumatic hammer drill in some details resembles the device of an automatic weapon. Without going into the intricacies, let’s just say that a hammer drill is, first of all, a more durable and powerful device, and especially from the point of view of drilling holes in hard materials. The speed of passage of rock drills is much higher, the recoil is less, etc.

Then a reasonable question arises: “Why shouldn’t everyone use only punchers?” We answer:

  • if we compare a hammer drill and a drill of a similar level (the same manufacturer, the same class of tool, etc.), then the hammer drill is more expensive;
  • correspondingly increased requirements are imposed on consumables (meaning drills) for perforators, therefore they are more expensive than conventional ones;
  • since drills for a hammer drill undergo very specific loads, they have a special mounting structure in the chuck, which makes it impossible to use conventional drills without a special adapter;
  • the use of an adapter with a conventional chuck significantly lengthens the entire structure and makes it inconvenient and sometimes almost impossible to drill without hammering. Therefore, when choosing a tool, you must clearly understand the specifics of the upcoming work. If the main work will be on wood and metal, and your walls are brick, then an impact drill is what you need. If there is a constant fuss with holes in concrete, then take pity on yourself and buy a good hammer drill.

A few words about the main characteristics of drills and hammer drills

In the technical passport of almost any manufacturer’s company, the following main characteristics of the power tool are highlighted:

  • Rated power. On the one hand, it will demonstrate how quickly and easily your new assistant will cope with the task, and on the other hand, it will warn you about the possible need to replace burnt-out plugs;
  • RPM or idle speed. This characteristic will tell you about the degree of freedom when working with various materials and accessories (for example, when grinding); 3) maximum drilling diameter in concrete, steel, wood. In order not to burn out the engine of your tool on the very first day of work, we strongly recommend not to go beyond these indicators. Well, every manufacturer will not forget to mention the specific capabilities of this or that model:
  • Rotation speed regulation. Most modern hammer drills and hammer drills have the ability to adjust the rotational speed or rotational speed of the drill. The rotation speed depends on the force of pressing the start button. Many models are equipped with a special dial for the maximum speed. This means that you press the trigger all the way, and the rotation speed is at your chosen level. In addition, there are models where a special processor, depending on the type of material set and the diameter of the drill determined by the drill itself, selects the optimal rotation speed and maintains it regardless of the load on the tool (all, of course, within reasonable limits). I would also like to mention two-speed drills. In such models, for a more rational use of the power of the tool, a mechanism is used that resembles the principle of a car’s gearbox;
  • Switch locking button. Its presence will allow you, if you need a long-term operation of the tool, not to press on the “trigger” constantly;
  • Reverse function. This is the ability to rotate the drill in both directions. This function is very convenient if you need to unscrew a screw or self-tapping screw, especially when it is not screwed in manually, but with your own drill.

Chucks for drills and hammer drills

Drills are currently equipped with two types of cartridges:

  • Serrated (chuck with key). Traditional chuck, in which the drill is fixed with a special key (which, in turn, can be lost);
  • Keyless. A small hand force is sufficient to secure the drill in such a chuck. But make no mistake about the strength of such an attachment. The drills are fixed in them no worse, but the absence of the need for a key as such is great. After all, you cannot lose what is not. Both types of these chucks are three-jaw, so you can easily attach attachments. screwdrivers, etc. Rock drills usually use the SDS-PLUS fastening mechanism, which allows only the use of special drills and does not require a key to fasten. Some models of rock drills use conventional cartridges.

A little about electronics

There is no limit to improvement. There are, for example, models of drills, where not only the required rotational speed of the drill is automatically determined and maintained, but a whole intellectual process takes place when the screws are tightened. The drill independently, when tightening the first screw, will determine the optimal torque, and all the rest will be tightened in the same way. It is enough for such a contraption to indicate the type of material and the desired type of work, and the rest is a matter of technology.

How to choose a puncher

The first thing to think about when choosing a unit: what task will be put in front of it? The next parameter to look at is impact strength. So, let’s determine, choosing a perforator, how many joules are needed in order for it to cope with the task at hand? For operation in apartment conditions, a device with an exponential impact force of 3 J. is sufficient. A similar power of a household perforator is enough to work with partitions in residential premises. The impact force of construction variations starts from 6 J, which allows them to work with more durable materials such as concrete and asphalt.

The next factor that should be taken into account is the power of the unit. The impact force also directly depends on this parameter, so you need to look carefully. Such devices are often divided according to this parameter. Three types can be distinguished:

  • Light. Weight. up to 4 kg, and the power of such a unit has a maximum of 800 watts. This allows you to achieve impact energy up to 3 J.
  • Middle. The weight category of these models is at around 5-8 kg, the impact force reaches 9 J, and the power varies in the range of 800-900 W. They can be used with heavy-duty materials.
  • The weight of heavy tools exceeds 8 kg, while a power of 1.2 kW and an impact force of more than 17 kJ makes it possible for them to solve completely different tasks.

The key aspect is the number of revolutions of the chuck. Often the tempo affects how quickly the punch breaks down. In order to remove debris from the channels, some models have a smaller rotation cycle.

Depending on the manufacturer and model, the device may have its own design features. However, in any case, such a tool includes a motor, a torque mechanism and impact functions, a chuck. The last element is fixed using the standard SDS option. Additionally, other systems and mechanisms can be used that extend the functions of the device. For example, a mechanism is installed:

  • reduction of vibration effects;
  • fixing the chisel in the appropriate position;
  • control of the depth of making holes;
  • preventing dust from getting inside the case;
  • switching modes of operation.

This also allows you to make the use of the tool as comfortable as possible.

Perforators complete set

Components and additional parts are extremely important when choosing a hammer drill, so you need to carefully read what the manufacturers offer.

The first thing to look out for is the use of auxiliary drills. Also in cordless rotary hammers, a charger must be included in the kit. Adapters for changing the mode to drilling are supplied for some models. Also, all rotary hammers are equipped with a convenient case for storing and transporting tools. In addition, the kit may include a side handle for more convenient operation. Standard or key chuck may be included depending on the model.

Auxiliary options

The priority component, which is needed in addition to the power itself, is the shock damping system. It extends the life of the instrument and reduces the background noise during the operation of the device.
Also, the tool is additionally equipped with dust protection, because often assembly and disassembly processes are accompanied by a large amount of dust and dirt. Installation of special protection prevents clogging of internal mechanisms. As a result, the tool does not clog, which increases its service life.
There are times when the hammer drill needs to be used for a long time. Squeezing the trigger regularly makes the process more difficult. To solve such situations, trigger mechanism clamps are installed on modern tools. It is designed to remove the need to regularly activate Start. In addition, the tool includes a power controller that can be locked in one position for more productive work.

How to choose a puncher: 5 tips for choosing the right one

Differences between a hammer drill and a hammer drill

The principle of the hammer drill is hardly different from this tool. The main feature is a more “jewelry” creation of holes. The first one, although it includes the push piston, but makes accurate holes, while the second drills a hole that will be slightly wider than the drill. What makes a hammer drill better than a drill means more power, endurance and a wider range of work.
In other words, the hammer drill is a simpler option, its ability is often limited to simply drilling holes, mainly in walls that lack strength. As you can see, these two tools serve different purposes. if one is needed for drilling holes in the baffles, then the other is useful for gouging in a wide variety of materials.

What is the bottom line

A hammer drill is a tool that is distinguished by high technology and versatility. Its potential for impact on durable coatings is impressive, but the handling is difficult for some users. For continuous drilling of holes, the use of this tool is mandatory, but for a single use, an impact drill is sufficient.