How to choose a quality hammer drill for homework

Drive unit

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The tool can be equipped with a vertical and horizontal electric drive. In the first case, the gearbox and the motor are cooled very effectively, which provides the tool with a certain margin of endurance. With a horizontal arrangement of the electric drive, there is an increased convenience of working with such a tool.

How to choose a quality and inexpensive rotary hammer for your home

How to choose a good rotary hammer for homework

Today, branded models are produced by domestic manufacturers and many popular foreign companies. At the same time, the correct independent choice of a perforator often puts amateur craftsmen in a rather difficult position.

In addition to the price of the device and power indicators, it is necessary to pay attention to the location of the drive, operating modes and other important parameters.

The weight of the working tool is presented in three main categories. Models up to 3 kg are light and easy to use, but they can solve a limited range of tasks. The devices in the middle weight category (from 3 to 5 kg) have universal functionality, and the highly specialized ones include heavy professional punchers.

Working hours

Modern rotary hammers work in the mode of standard and hammer drilling, as well as chiselling. Each model contains a rational solution and excludes the presence of component parts designed to perform operations unclaimed by consumers.

Equipment

Depending on the design characteristics, the hammer drill is supplied with certain accessories and has the functions necessary in each specific case:

  • a persistent handle that changes position and makes work as comfortable and completely safe as possible;
  • depth gauge limiter to prevent excessive immersion of the working drill;
  • a set based on working tools in the form of peaks, drills and bits, thereby increasing the functionality of the device;
  • replaceable or additional (keyless, key type) chuck, which is supplied with a special adapter;
  • control electronics, easily controlling the speed and frequency of impact work;
  • a safety clutch that quickly stops work in the event of a jammed operating drill;
  • reverse, trigger lock and a system of illumination of the work area to increase the accuracy of the perforation.

Food

By the type of power supply, network models are distinguished, characterized by the optimal combination of price and performance indicators, as well as battery devices that are mobile, but need periodic charging. In this case, the drill, bit and peaks can be fixed in the “SDS” (under the liner) and “SDS-max” (rigging with a base) option. Rotation of the chuck with a drill is carried out at a speed of 600 to one and a half thousand revolutions per minute.

Dust cleaning capability

The durability of the device is ensured by a passive or forced dust extraction system. The basic configuration is characterized by the presence of the first option, and in some models a preventive dust removal system is installed. The indicators of the power consumed by the device are necessarily taken into account when performing work, if there is no stable electrical supply of the tool.

Naturally, a significant number of functions makes the device more expensive, but it is possible to perform work with such a device comfortably and easily. At the same time, there is absolutely no reason to overpay for functionality that is not needed. For household needs, it is enough to purchase a middle-class rotary hammer that will cope with simple repair work at home.

No matter how attractive this or that model of perforator is in terms of appearance and price, experts do not recommend making hasty conclusions when choosing such a tool. Only as a result of a thorough analysis of the individual needs and potential of the device can one correctly determine the feasibility of investing money in the purchase of a construction tool.

Additional functions and tool cost

Reverse mode perforator diagram.

Any hammer drill for the home can be equipped with additional functional elements that greatly expand the possibilities of using this unit. Tools with such parameters provide better and more reliable results when carrying out various repair work. For example, any hammer drill with a built-in reverse mode can be used as a conventional screwdriver. The soft start option plays an important role. If present, any fluctuations of a chaotic type are prevented when the unit is turned on.

The safety element built into the hammer drill is very helpful against overheating and engine wear. A small stopper on the switch is able to prevent prolonged pressing of this button. The most expensive and high-quality models of rock drills are usually equipped with an anti-vibration mechanism. The housing in such tools is very often all-metal and completely insulated, and the engine of the unit can be practically silent.

The cost of a hammer drill will always correspond to the level of its power and the presence of additional functionality in it. An important parameter in the formation of for this tool is the cost of each component. The cost of this unit is highly dependent on the scope of delivery. The budget version of the hammer drill will cost the buyer about 70-90. Small tools of the middle class can cost about 300. e., and the price of a professional three-mode type hammer drill can reach up to 1200 US dollars.

Tool maintenance and repair

Be sure to change the lubricant in the rotary hammer every six months.

Before buying a hammer drill, experts recommend that you familiarize yourself with some additional factors for servicing this unit. This tool is produced according to a rather complex technological algorithm, so it must be used very carefully and accurately. Every six months, it is recommended to do some preventive maintenance of this unit. First of all, you should regularly check the condition of the hammer drill at the nearest repair service and periodically change the special working lubricant in the device. This will allow you to prevent any problems that may arise while using your tool. However, it is very common for many homeowners to self-service their rock drill. For such repairs, the following materials may be needed:

Diagram of the device components of the punch.

  • removable cartridges;
  • barrel lock;
  • bushings;
  • special grease;
  • varnish;
  • hammers;
  • staples;
  • set of elastic bands.

For high-quality service of punchers, you need to have the following tools in stock:

  • hammer;
  • screwdriwer set;
  • pliers;
  • set of wrenches;
  • vice;
  • soldering set.

Most experts believe that it is possible to completely repair all the breakdowns in the hammer drill only with the help of qualified specialists. Therefore, we recommend that you always carefully analyze any problems with the instrument. If you cannot fix them yourself, then you should definitely contact the repair service. Any wear of parts of this unit always directly depends on the number of loads on it.

The essence of the punch and the main modes of its functionality

Punch device diagram.

The basis of this tool is a drilling mechanism that carries out axial and longitudinal types of impacts on a concrete base. This mechanism is produced by rotating movements of the hammer drill. In practice, this unit is very often equated with an impact drill. Although, in fact, there is a fairly large difference between these tools. The impact function of the hammer drill is pneumatically driven, and the drill is mechanically driven. Therefore, using the first tool, you can make any holes in a brick or concrete base much faster and better than using the second unit.

A rotary hammer with 2 modes of operation is optimal. It combines both drilling and hammering.

Depending on the modes of functionality, any rotary hammer can be attributed to one of the following types. one-, two- and three-mode tools. The first type of unit is considered a rather highly specialized device with a simplified design. Most experts believe that this type of hammer drill will not be able to meet all home repair needs. The main functional mechanism in this model is drilling with a hammer mode.

The optimal and popular type is a perforator with 2 operating modes. Its main advantage is the high-quality combination of hammer and conventional drilling mechanisms. The three-mode hammer drill, which includes the maximum functional set, is also considered reliable. For wood, metal, concrete and brickwork, simple hammer drilling or hammer drilling can be used, while simple hammer drilling works very well for removing tile materials. To choose the most optimal and high-quality perforator, you must definitely pay attention to the presence of the above functional modes in it.

Rotary hammer technical features

When buying a hammer drill, be sure to pay attention to the power.

In order to choose the right hammer drill for your home, you need to take into account such parameters as power and impact force. All other things being equal, it is always more profitable to purchase the unit that has the highest possible level of the above indicators. These 2 parameters can be disproportionate. it all depends on the design features of this tool. An important element in the technical characteristics of such a unit as a perforator is the presence of a conventional or keyless chuck in it.

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Many experts believe that the second type of tool is best suited for use in the home. By using the keyless chuck, you can change the drill very easily without using any additional keys. Before you buy a hammer drill for your home, experts recommend determining the weight of this unit. The instrument, which is considered to be quite light, has a maximum power of 730 W. As a rule, its weight does not exceed 3.5-4 kg. The average rock drill has a higher power rating. from 800 to 1600 watts. Such a tool weighs approximately 9 kg. The heavy type of hammer drill has a similar indicator, but its power level exceeds 1600-1700 W.

Very often, for many homeowners, the process of processing concrete bases is relevant. For example, to make a high-quality hole in such a building material, you will definitely need a special tool called a puncher. With this unit, you can process any concrete layer quickly and efficiently. Therefore, for many people the following question is considered very relevant: how to choose a hammer drill for use in ordinary home conditions?

In order to drill a hole in a concrete base, a hammer drill is required. With the help of it, you will do your work much faster and better.

Each professional in the construction business has his own, personal approach when buying this unit.

However, there are general principles as well. Based on them, any homeowner will be able to choose a very high-quality and reliable tool for himself. Before choosing a hammer drill, you must clearly define the type and volume of work for which you purchase this unit. All the main factors that need to be considered when choosing the optimal and very high-quality tool for processing concrete structures will be described below.

Rotary hammer for home and work

For use in a private house, it will be enough to purchase a medium-sized tool. Experts categorically do not recommend buying a very powerful and dimensional puncher for this purpose. The main thing is that the purchased unit is of sufficient quality and meets all your requirements. A tool with advanced functionality and a strong power level is best suited for professional purposes. A general positive criterion when choosing a hammer drill for home and work is the presence in the delivery set of the main set of all drills.

Each potential buyer of this tool must independently assess all the potential needs for construction or repairs that he needs to satisfy with the help of the unit. Based on this criterion, you should choose the most optimal version of the perforator. In practice, very often there are situations when expensive and powerful rock drills are unsuitable for the job. The most important thing is that the unit you have chosen fully and efficiently cope with all the tasks assigned to it.

Cordless Rotary Hammer Drill Restoration and Battery Rebuild 7S60A | Makita HR200D

The price of the units directly depends on their capacity, the range of implemented functions, the quality and cost of all components. Also, the cost of each specific perforator will be affected by the scope of delivery. The most budgetary unit will set you back 80-100, a mid-range model “pull” about 250-350 USD A professional three-mode rotary hammer is worth neither more nor less. 1000 dollars.

Additional features of the units

In addition to the standard set of functions, perforators may have additional gadgets that significantly expand the capabilities of the tool and facilitate the work of the user. For example, the presence of a reverse mode in the hammer drill will allow the unit to be used as a screwdriver. In addition, this mode can help “release” jammed working tool.

Option “soft start” will avoid chaotic vibrations of the device immediately after turning it on. The presence of the switch stopper relieve you of the need to constantly press the corresponding button during operation. The overload clutch protects the engine from damage and overheating.

Expensive models boast an anti-vibration system, as well as fully insulated all-metal housings, two-speed gearboxes, and less noise.

Tools

Want to drill a hole in concrete? So that this manipulation does not take a lot of time, nerves and physical effort? So you need a device that will combine the best qualities of a jackhammer and an electric drill. So that the repair does not become a colossal test for those who dared to carry it out on their own, it is worth purchasing a high-quality hammer drill for the home. For professional builders, this topic is doubly relevant. How to choose a puncher and not miscalculate. the question is, of course, difficult, but quite solvable.

Tool classification: attention to modes of operation

Rotary hammers, depending on their functionality, can be divided into several types:

  • single-mode;
  • dual-mode;
  • three-mode.

The first. these are highly specialized professional devices. Their design is extremely simple, but nevertheless, they are not suitable for home repair needs. Single mode models support hammer drilling function.

Models in which the only supported mode. impact (chiselling), called jackhammers.

common, and accordingly more familiar to the layman, are dual-mode perforators. In addition to hammer drilling, they have a mode of either conventional drilling or chiselling.

In three-mode units, all of the above functions are presented.

The drilling mode is used when working with metal and wood, hammer drilling. with concrete and brick, impact mode is optimal for removing tiles from walls and floors.

Before choosing a hammer drill for home or work, be sure to pay attention to the functionality of the device. because in everyday life, for sure, all three modes will be required.

  • Rotary hammer and hammer drill: what is the difference?
  • Tool classification: attention to operating modes
  • Design features and equipment
  • Additional features of the units
  • Perforators cost
  • Which hammer drill to choose for home and which one for work

Design features, equipment, technical characteristics

The main characteristics by which the performance of a rock drill can be judged are its power (measured in watts) and impact force (measured in joules). Which rotary hammer is better? Certainly the one in which these parameters are higher.

Note! Impact force is not always proportional to power. this is due to the design features of the power tool.

Rotary hammers are equipped with one of two types of chuck: conventional or quick-clamping. The best option not only for professional, but also for home use is the second option. Keyless chuck allows you to change drills with a light hand effort, without using a special key.

Another interesting characteristic of any unit. its weight. Distinguish between light, medium and heavy rock drills.

  • light hammer drills weigh no more than 4 kilograms, their maximum power is 700 watts;
  • the average weigh from 5 to 8 kilograms, their power ranges from 700-1500 watts;
  • heavy devices weigh 8 or more kilograms, their power exceeds 1500 watts.

The lightweight models are equipped with SDS-plus chucks, allowing the use of drills up to 26 mm in diameter. Heavy rock drills are equipped with SDS-max cartridges. the operation of drills with a diameter of up to 60 millimeters is not a problem with them. In various models of medium rock drills, you can “meet”, both those and other cartridges.

Interesting! SDS-top cartridges (for 16-25 mm drills) have started to be used relatively recently. They are not yet widespread. such cartridges are mainly equipped with units from Bosch.

Like most other construction power tools, the hammer drill can do its job., “eating” not only from the mains, but also from the battery. It is worth noting that cordless tools are much more expensive than classic ones, and the need for such “mobility” occurs extremely rarely.

Electronic speed control. by no means a superfluous item in equipping a perforator. Availability of appropriate “auxiliary device” will allow you to select the optimal rotation speed. depending on the size of the drill, the current load on the perforator, etc. Thanks to electronic control, the service life of the unit is increased and the quality of work is improved. In principle, many models can boast of such a function.

Heavy hammers (in most cases). professional tool. For home needs with a head, the average model is enough.

Rotary hammer and hammer drill: what is the difference?

A hammer drill is a drilling machine that carries out longitudinal-axial (i.e. impacts) and rotating movements of the working tool. Practice shows that very often this device is confused with an impact drill. What is the difference between these units? It lies in the intricacies of the technical implementation of the percussion function: with a drill, it is carried out mechanically, with a hammer drill. pneumatically. It is thanks to this that the latter is able to make holes in concrete, brick, stone, etc. much faster, while working with it requires much less physical effort than with a drill. It is worth noting that “shock” the mode seriously wears out the drill.

Rotary hammers are larger and more massive units. they are high performance and reliable.

Which hammer drill to choose for home and which one for work

For home use, an overly heavy and mega-powerful unit is definitely not required. you can turn your attention to the middle class models from Makita.

Professionals, on the other hand, should consider a high-performance machine with enough bells and whistles. The right model from Bosch can be a good option.

In either case, it would be very nice if the package included a set of drills.

You can argue endlessly about which hammer drill is better. Remember, a noteworthy hammer drill doesn’t have to be the coolest or obscenely expensive. If the unit will one hundred percent cope with the task assigned to it, then in your particular case it will be the best!

Power

The first parameter that pays attention to, as well as the first one we are considering, is power. Of course, there is no clear gradation of hammer drills in terms of power, but it is usually believed that a 450–900 Watt tool is intended for home use, while professional tools have a power of 900–2000 Watt. Everything here will depend on the work that you will need to do, its volume. For example, the thickness of the drill used may depend on the power. In domestic conditions, a less powerful (and as a result, cheaper) perforator is usually enough.

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Vertical or horizontal rock drill

Depending on the engine placement option, rock drills are divided into vertical and horizontal. In a vertical or L-shaped rock drill, the motor is located perpendicular to the axis of the impact tool. This arrangement allows the use of a more powerful motor in the housing and better cooling, which in turn increases the operating time. Also, this option makes the tool more compact. As you understood from the description, this arrangement is used in professional models.

Domestic rock drills have a horizontal layout, in which the engine is located on the same axis with the drill. The main advantages of this option are the low weight of the tool and the ability to work in narrow openings.

What to choose: hammer drill or hammer drill

A frequently asked question is which hammer drill or hammer drill to choose. An impact drill is sometimes called a “hammer drill“, and, based on this name, many people think that they are one and the same, and such a drill has the same principle of operation. It’s not like that at all.

The hammer drill makes oscillatory movements using two wheels (ratchets), which are repelled from each other during operation. Such a mechanism is notable for its imperfection and low productivity. With frequent use of the drill in this mode, the mechanism quickly wears out. And with a worn mechanism, performance decreases even more, in addition, the load on the electric motor increases, as a result of which it heats up more. If, in short, about the capabilities of an impact drill, then, for example, it can be drilled a hole in a brick, but it will no longer cope with concrete. Therefore, this is an option for a limited circle of household chores.

Professionals always choose a hammer drill with a more advanced and reliable impact mechanism, which in turn can be electromechanical or electro-pneumatic. The latter option is used in most modern models. The electro-pneumatic percussion mechanism makes oscillatory movements with the electromagnetic interaction of the piston and the ram. The battering ram strikes the striker, which, in turn, strikes the tool in the cartridge.

It is better to choose a more modern electro-pneumatic hammer drill, including for household work. It greatly facilitates work without requiring significant effort, as is the case with an electromechanical.

Rotary hammer manufacturers

There are a huge number of manufacturers of rock drills. The most popular brands are Makita, Hitachi, Metabo, Bosch. The models of these manufacturers have proven themselves from the best side in terms of reliability, quality, ease of use, and overall thoughtfulness of the design.

Tools used at home are usually used occasionally and do not involve severe stress. Therefore, you can pay attention to the budget domestic brands Caliber, Energomash, Prorab, Interskol, SPETS, Enkor. The advantage of these brands is the price, which is usually 20-30% lower.

Impact force

Impact force is an important parameter. It is measured in Joules (J). This is the kinetic energy with which the tool will contact the work surface. The impact force directly depends on the power of the hammer drill. A tool with an impact force of 2–4 J is perfect for household work. Rotary hammers with an impact power of 15–20 J are already designed for professional work.

Chuck type

Another difference between rotary hammers is the type of chuck for securing the drill. The most common cartridges are SDS-plus and SDS-max. The SDS-plus fastening system is designed for drilling holes with a diameter of 4 to 20 mm, which is sufficient in most cases. Therefore, it is they who are equipped with household rotary hammers. The SDS-max chuck allows you to install drills of a much larger size, therefore, they are used on heavy (professional) models. Another type of cartridge. SDS-top is rarely used.

How to choose a hammer drill for homework

A hammer drill in our time is one of the most indispensable tools for construction and repair. It is capable of withstanding significant loads and greatly facilitates the course of work. Due to such popularity, a huge assortment has appeared on the market, which makes it difficult for an inexperienced craftsman to choose. In this material, we will consider the main characteristics that you should pay attention to when choosing it, design features, the difference between a hammer drill and an impact drill. So, how to choose a hammer drill for homework.

Drill or hammer drill

Both the drill and the hammer drill can perform the functions of each other. However, it is inconvenient to work with a hammer drill as with a drill. At the same time, the drill, carrying out the work of the hammer drill, wears out. Therefore, the choice depends on the material with which you have to work.

  • If the work is mainly carried out in concrete and similar materials, then it is preferable to choose a rotary hammer.
  • When working with steel and wood, a drill is better.

If you have to work equally often with all the listed materials, then it is better to have both tools. This will greatly facilitate the process and keep the units in good condition.

Tool characteristics

Characteristics The hammer drill has a number of characteristics that are very important when choosing a tool.

  • Rotation speed regulator. Thanks to this mechanism, you can set the maximum rotational speed of the drill. This makes the work process much easier. You just need to set the speed, and you can start drilling.
  • Power. The power of a tool affects its weight. However, the most powerful hammer drill is not always the best. You need to choose such a device only if necessary. The drilling speed depends on this indicator, as well as the thickness of the drill with which to work. The higher the power, the thicker the drill can be and the higher its rotation speed.
  • The ability to disable the percussion function. If the hammer function can be turned off in the hammer drill, then it can be used instead of a drill.
  • Switch stopper mechanism. The ability to lock the switch makes the work more comfortable and convenient. The master does not have to constantly press the trigger. It relieves tension on hands and fingers.

The advantages of rock drills

Benefits Often many beginners are surprised: why do you need a hammer drill, if you can buy a drill for work? It is cheaper, the components for it also cost an order of magnitude less, and it is also compact and familiar. However, not all so simple. There are some subtleties that you need to know before choosing.

The hammer drill is really quite an expensive device. It belongs to the professional tool. But its cost pays off. First of all, it is worth mentioning the quality and durability of a good rock drill. Another undoubted plus is the drilling speed.

The drill will not be able to provide such high speed indicators, because its impact function is just an addition to the main, drilling.

The hammer drill works excellently on concrete, plaster and soft materials. A special chuck ensures reliable operation of the device, while no effort is required from the master. If you need to make a high-quality repair, then you can’t do without a hammer drill. Of course, ideally, the master should have both a hammer drill and a drill.

The difference between rock drill and drill

As already mentioned, many people simply do not see the difference between an impact drill and a hammer drill, and this sometimes becomes the cause of fatal errors. The difference lies in the principle of the tools. With a conventional drill, the effect produced is highly dependent on the force of pressing the master on the tool. Do not put pressure on the hammer drill, this can lead to breakage. The hammer drill contains a built-in pneumatic or electromagnetic mechanism that produces impact force.

The hammer drill requires three times less force than an impact drill.

To choose the right puncher, you need to know its difference from a drill and use it for its intended purpose.

Rotary hammer types

Types Perforators have their own classification, therefore, you need to understand it.

Functional classification:

  • single-mode (drilling);
  • dual-mode (drill with impact);
  • three-mode (crushing function is added).

Weight classification:

  • lungs (from 2 to 4 kg);
  • medium (about 5 kg);
  • heavy (over 5 kg).

Thus, depending on the included functions, the widest range of work is available to rotary hammers:

  • drilling in wood, concrete and steel surfaces;
  • wrapping screws, bolts, screws;
  • chip;
  • rammer;
  • chopping work;
  • driving in rods;
  • making holes in ceilings.

Tool set

Equipment

You need to choose a puncher based on the complexity and nature of the work. At the same time, do not forget about the accessories for the tool. So, you need to take a set of drills in advance. Often when buying a unit, you can find that the basic set of drills is already in the package. This is quite enough for work of average complexity at home. However, for more complex work, especially when it comes to a professional tool, you will have to select components individually.

Drills are more expensive than drills. This is due to the fact that they are subject to increased requirements.

In order for the hammer drill to work as a drill, you need to purchase a special adapter. When buying, you need to ask if it is included in the kit. Sometimes manufacturers include such parts in the kit.

Brushes

Spare brushes must be purchased if work is done daily. This is very important for craftsmen who use the tool for a long time.

For homework, one extra set of brushes is suitable. Often they are already in the package. Before choosing a hammer drill for your home, you need to see if there are brushes in the kit. This will save.

How to choose a puncher

  • 1 Types of rotary hammers
  • 2 The difference between rock drill and drill
  • 3 Rules for working with a puncher
  • 4 Drill or hammer drill
  • 5 Instrument set
  • 6 Tool characteristics
  • 7 Benefits of rotary hammers
  • 8 videos

Perforators are widely used in construction work, both by professionals and by the apartment owners themselves. Often people do not distinguish a hammer drill from a conventional hammer drill, so the question of choosing a tool becomes rather vague. Before choosing a hammer drill, you need to understand a few basic points. One of them is the difference between a hammer drill and a drill. The second is the specifics of the work and the classification of the instrument. In this article we will tell you how to choose the right puncher for the job.

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Rules for working with a puncher

Job When working with a puncher, you must adhere to certain rules.

  • Pressure on the working tool is prohibited. The force on the hammer drill can destroy the drill.
  • You should not strive to get all the work done in one go. After each hole, the drill must be cleaned.
  • The gearbox must always be lubricated. You also need to watch the anthers.
  • Tool equipment should be selected depending on the type of work. It is also necessary to take into account the specifics of the instrument. So, in some rotary hammers, replacement is done quickly, in others. using an adapter.
  • Care must be taken to ensure that the instrument does not overheat. You should also protect it from mechanical damage. When choosing a hammer drill, it is better to take one with a gear case made of aluminum.
  • The hammer drill generates dangerous vibrations during operation. Therefore, in order to reduce it, special inserts are installed in the tool. However, it makes sense to wear thick rubber gloves during the work process.
  • A hammer drill is not a bump stop, although it has the corresponding functions. Therefore, you should not use it too often as a punching tool.
  • The pressure on the tool will not increase its power and performance.

Additional functions and tool cost

Reverse mode perforator diagram.

Any hammer drill for the home can be equipped with additional functional elements that greatly expand the possibilities of using this unit. Tools with such parameters provide better and more reliable results when carrying out various repair work. For example, any hammer drill with a built-in reverse mode can be used as a conventional screwdriver. The soft start option plays an important role. If present, any fluctuations of a chaotic type are prevented when the unit is turned on.

The safety element built into the hammer drill is very helpful against overheating and engine wear. A small stopper on the switch is able to prevent prolonged pressing of this button. The most expensive and high-quality models of rock drills are usually equipped with an anti-vibration mechanism. The housing in such tools is very often all-metal and completely insulated, and the engine of the unit can be practically silent.

The cost of a hammer drill will always correspond to the level of its power and the presence of additional functionality in it. An important parameter in the formation of for this tool is the cost of each component. The cost of this unit is highly dependent on the scope of delivery. The budget version of the hammer drill will cost the buyer about 70-90. Small tools of the middle class can cost about 300. e., and the price of a professional three-mode type hammer drill can reach up to 1200 US dollars.

Tool maintenance and repair

Be sure to change the lubricant in the rotary hammer every six months.

Before buying a hammer drill, experts recommend that you familiarize yourself with some additional factors for servicing this unit. This tool is produced according to a rather complex technological algorithm, so it must be used very carefully and accurately. Every six months, it is recommended to do some preventive maintenance of this unit. First of all, you should regularly check the condition of the hammer drill at the nearest repair service and periodically change the special working lubricant in the device. This will allow you to prevent any problems that may arise while using your tool. However, it is very common for many homeowners to self-service their rock drill. For such repairs, the following materials may be needed:

Diagram of the device components of the punch.

  • removable cartridges;
  • barrel lock;
  • bushings;
  • special grease;
  • varnish;
  • hammers;
  • staples;
  • set of elastic bands.

For high-quality service of punchers, you need to have the following tools in stock:

  • hammer;
  • screwdriwer set;
  • pliers;
  • set of wrenches;
  • vice;
  • soldering set.

Most experts believe that it is possible to completely repair all the breakdowns in the hammer drill only with the help of qualified specialists. Therefore, we recommend that you always carefully analyze any problems with the instrument. If you cannot fix them yourself, then you should definitely contact the repair service. Any wear of parts of this unit always directly depends on the number of loads on it.

The essence of the punch and the main modes of its functionality

Punch device diagram.

The basis of this tool is a drilling mechanism that carries out axial and longitudinal types of impacts on a concrete base. This mechanism is produced by rotating movements of the hammer drill. In practice, this unit is very often equated with an impact drill. Although, in fact, there is a fairly large difference between these tools. The impact function of the hammer drill is pneumatically driven, and the drill is mechanically driven. Therefore, using the first tool, you can make any holes in a brick or concrete base much faster and better than using the second unit.

A rotary hammer with 2 modes of operation is optimal. It combines both drilling and hammering.

Depending on the modes of functionality, any hammer drill can be classified as one of the following types. one-, two- and three-mode tools. The first type of unit is considered a rather highly specialized device with a simplified design. Most experts believe that this type of hammer drill will not be able to meet all home repair needs. The main functional mechanism in this model is drilling with a hammer mode.

The optimal and popular type is a perforator with 2 operating modes. Its main advantage is the high-quality combination of hammer and conventional drilling mechanisms. The three-mode hammer drill, which includes the maximum functional set, is also considered reliable. For wood, metal, concrete and brickwork, simple hammer drilling or hammer drilling can be used, while simple hammer drilling works very well for removing tile materials. To choose the most optimal and high-quality perforator, you must definitely pay attention to the presence of the above functional modes in it.

How to choose the right puncher

Very often, for many homeowners, the process of processing concrete bases is relevant. For example, to make a high-quality hole in such a building material, you will definitely need a special tool called a puncher. With this unit, you can process any concrete layer quickly and efficiently. Therefore, for many people the following question is considered very relevant: how to choose a hammer drill for use in ordinary home conditions?

In order to drill a hole in a concrete base, a hammer drill is required. With the help of it, you will do your work much faster and better.

Each professional in the construction business has his own, personal approach when buying this unit.

However, there are general principles as well. Based on them, any homeowner will be able to choose a very high-quality and reliable tool for himself. Before choosing a hammer drill, you must clearly define the type and volume of work for which you purchase this unit. All the main factors that need to be considered when choosing the optimal and very high-quality tool for processing concrete structures will be described below.

Rotary hammer technical features

When buying a hammer drill, be sure to pay attention to the power.

In order to choose the right hammer drill for your home, you need to take into account such parameters as power and impact force. All other things being equal, it is always more profitable to purchase the unit that has the highest possible level of the above indicators. These 2 parameters can be disproportionate. it all depends on the design features of this tool. An important element in the technical characteristics of such a unit as a perforator is the presence of a conventional or keyless chuck in it.

Many experts believe that the second type of tool is best suited for use in the home. By using the keyless chuck, you can change the drill very easily without using any additional keys. Before you buy a hammer drill for your home, experts recommend determining the weight of this unit. The instrument, which is considered to be quite light, has a maximum power of 730 W. As a rule, its weight does not exceed 3.5-4 kg. The average rock drill has a higher power rating. from 800 to 1600 watts. Such a tool weighs approximately 9 kg. The heavy type of hammer drill has a similar indicator, but its power level exceeds 1600-1700 W.

Rotary hammer for home and work

For use in a private house, it will be enough to purchase a medium-sized tool. Experts categorically do not recommend buying a very powerful and dimensional puncher for this purpose. The main thing is that the purchased unit is of sufficient quality and meets all your requirements. A tool with advanced functionality and a strong power level is best suited for professional purposes. A general positive criterion when choosing a hammer drill for home and work is the presence in the delivery set of the main set of all drills.

Each potential buyer of this tool must independently assess all the potential needs for construction or repairs that he needs to satisfy with the help of the unit. Based on this criterion, you should choose the most optimal version of the perforator. In practice, very often there are situations when expensive and powerful rock drills are unsuitable for the job. The most important thing is that the unit you have chosen fully and efficiently cope with all the tasks assigned to it.