When to use an impact drill?
This type of power tool usually has a switch that allows you to choose between drilling mode and hammer drilling mode. When you work in conventional drilling mode, the hammer drill can be used for any task that is usually done with a simple drill. In hammer drilling mode, such a tool is used when working with stone surfaces. So, if the mode is selected correctly, an impact drill can punch a hole in just about any material. If during the repair it is planned to drill stone surfaces, you should have a hammer drilling tool.
This type of power tool is constantly used by professionals to install switchboards and other pieces of equipment on brick and concrete walls. Home craftsmen use them for many jobs, mainly when hanging shelves and cabinets on stone walls.
Instruction: impact drill or hammer drill
Added by: Andrey on November 16
There are many different tools to be found on the market today, so it can be difficult to choose the right tool for a particular job. Every master knows what an impact drill is. This is a special kind of tool for punching any building materials.
Impact drills look like ordinary ones, which everyone who is doing their own repairs has, but their design includes a special mechanism that makes the drill in the process of work make pushing, like a hammer blow. This effect is simply necessary for working with bricks, concrete and other stone materials.
Cordless hammer drill works cordless
Cordless 18-volt impact drills are widespread and provide enough power for concrete applications. In terms of functionality, this type of tool is extremely close to a standard 18 volt drill, but it has an impact mode. It can also be switched to normal drilling mode for tasks rather than stone related. Cordless tools are usually much bulkier and heavier than conventional tools, making them less convenient to use.
How to choose an impact drill for stone work
Most drills have a chuck with three clamps, with which you can use standard drills for work on metal, plastic, wood (working in the mode of conventional, non-hammer drilling). Working with a stone requires Special tools.
The stone drill features recessed notches, a hardened tip and hard inserts connected to the cutting ends. These drills are usually 15 cm in length, but there are instances of shorter ones. 8 and 10 cm.The flat, pointed tip allows this drill type to be clearly identified at a glance.
Impact drill or hammer drill?
If you suddenly need to drill a hole with a diameter of more than 1.5 cm, or you are working with a material that is much harder than concrete, then the power of the above device may not be enough. In such cases, a puncher will help you.
While the hammer drill works by rotating the ribbed engaging plates, the hammer drill works on the principle of a real hammer piston. Therefore, the rock drill is easier to hold in the hand while still providing more power output. However, this tool is not without its drawbacks. It is much more bulky than the first and can only be used for stone materials.
A special SDS chuck is implemented in rotary hammers, and only special SDS drills and other devices can be inserted into the drill. At the same time, they also have switches that allow you to turn off the rotation mode for crushing stone material and other similar tasks.
Impact drill for working with various materials
Many people these days are moving away from traditional corded drills and prefer modern, cordless ones. However, this approach does not always justify itself. First, the manual tool has a stable electrical power supply and will never stop in the middle of a workflow. Also, it usually has a greater power, compared to a cordless drill, and, accordingly, its area of application is wider.
The hammer drill typically runs at higher rpm (1100-3000 rpm) than conventional corded options (up to 850 rpm). The extra speed makes it more suitable for special jobs. And although the master may have many cordless drills, most of them set the hammer drill to conventional drilling and use grinding drums, wire brushes and polishing tools, connect them as an occasion.
The hammer drill can also be used with hole saws in this mode. And when performing such tasks (drilling holes), compared to a cordless or compact corded drill, the large size makes it more stable, easier to control, which ensures better performance.
Working attachments used and type of fixation
Another parameter that distinguishes the devices from each other is the working tool and the type of fixation of the element. Most often exploited:
In a drill, as a rule, a working element in the form of a drill is used, on which a soldering from an alloy will win. This option is relevant for concrete surfaces. It should be noted that the element is attached to a special clamp in both versions. But their design is different in the devices. Rotary hammers involve the use of a number of systems that allow you to quickly change the working element. These are, in particular, SDS:
For fixing, special grooves with a special configuration are used. It should also be said about the degree of freedom in relation to the clamp in the direction of the axis. This approach helps to reduce the workload during work.
A standard drill is used only if the device is equipped with a special adapter or a chuck with a cam mechanism is installed instead of the traditional one. The latch facilitates quick and easy clamp changes. The standard model is included with the machine. When a cam variation is used, a structure is formed, which consists of two clamps, connected in series with each other, and one auxiliary. But in this case, beating occurs during the operation of the device, and the mount is not sufficiently rigid.
From the above, it follows that rotary hammers are used to solve a wide range of tasks in comparison with impact drills. In addition, they benefit from power and performance. This means that this option is more relevant for performing complex operations. Drills are rational to use for solving small tasks.
Functionality of devices
The first difference. The functionality of the devices. This directly determines the operation of the tools. Drills have a wide range of applications, in particular:
- Drilling holes in thin coatings including wood and plastic surfaces. Using the switch uses the beat option.
- Making holes on hard surfaces. This is where the impact option comes to the rescue, allowing you to work even on brick surfaces.
- Driving and loosening screws, screws and wood screws. But such actions must be performed provided that the shock function is disabled.
Rotary hammers also perform the above tasks. In addition, these tools cope with punching holes in materials with high hardness. For example, reinforced concrete. In the process of work, various types of chisels are used, but subject to the need to make breaks or gutters in walls of concrete or stone. Such tools operate in three modes:
- Turns with blows;
- Like a jackhammer;
- Execution of revolutions without impact function.
There are only two modes in drills. This is drilling with and without blows.
Differences in striking mechanisms
The question is not which is more practical, but for what purpose the device is needed. The impact mechanism of the apparatus determines the main Distinctive features. The drills are distinguished by their simpler design. The “body” includes two ratchets, where one connects to the body and the other connects to the rotating chuck. When the shock option is disabled, these elements stop contacting each other, due to the presence of a special stopper.
When turned on. Interact with each other. This is due to the fact that the stopper is removed, and when the drill is pressed against the material, contact occurs. At the same time, the working element and the clamp for it are in motion, which is an axial reciprocating.
Rotary hammers are distinguished by a more complex design, which is made in the form of a knot. The mechanism exists in two variations: electromechanical and electro-pneumatic. The second is used more often than the first, due to the best performance.
The bottom line is that the engine rotates, which is due to the KShM (crank-connecting rod) converter mechanism. A special swinging assembly in the form of a sphere is also used. This leads to the fact that the cylindrical rod acquires a reciprocating motion. A space is formed between this element and the ram, in which a certain force acts, which leads to an increase in the movement of the latter. As a result, the element gives off energy to the working tool.
In other words, hammer drills are mechanics, and hammer drills. Pneumatics. Due to this, the indicators of amplitude and strength differ, respectively. With equal power, the functionality of the former will be lower in comparison with the latter.
What is the difference between a hammer drill and a hammer drill 7 main criteria
When it is necessary to carry out a series of repairs, it is recommended to use a hammer drill or hammer drill. The principle of operation of the devices is similar, but the number of differences is the same as the general characteristics. Therefore, before proceeding with the solution of the task, you need to decide which is better: a drill or a hammer drill.
The external similarity hides a number of differences, which determine the capabilities of each of these tools. The design of the devices does not allow them to be interchangeable. As a result, operational restrictions are imposed. Therefore, in what distinguishes these two instruments, below.
Difference in working conditions
Especially significant differences are seen in the operating conditions of the tools. With the same parameters as a hammer drill, drilling and hammer drilling is easier, for example, with the DeWalt D25501K model. To provide optimum power, a drill force of 9-16 kg is required and a hammer force is required. 5. A lower pressure value also reduces hand vibration, which is more comfortable for the user.
The hammer drill is more convenient, because the structure of the tool contains an air cushion, which has a softening characteristic. Due to this element, the tip of the striker and the piston does not dock with each other. This feature makes the hammer drill more practical in comparison with a drill.
Service life and reliability
The period of use of the tools. Another important parameter that determines the further purchase. An impact drill such as the Bosch EasyImpact 550 has a shorter operating time than a hammer drill. The advantage is that pneumatics reduces vibrations, therefore, the working conditions will be optimal for the entire structure of the apparatus. A special coupling helps to eliminate breakdowns when the drill gets jammed. For example, if the element hit the reinforcement.
The working parts of the drill quickly become unusable, which is due to the acting load on the gears. As a result, vibration affects with great strength and rigidity, negatively affecting the tool components, disabling the elements.
What is it and what is it for?
Impact screwdriver. This is a special power tool that allows you to most effectively drill a wall for the purpose of driving screws and installing second fasteners. Unlike bumpless models, this relative novelty in the domestic market makes a hole not only due to the actual rotation, but also with the help of directional blows. The latter are usually not permanent. The corresponding mode is turned on at the request of the operator, or automatically if the drill comes across an obstacle of particular hardness. In a way, it’s a little jackhammer.
Impact screwdriver. The device itself is more complex and “smart”, so a certain versatility should not be surprising. This means that the tool, as a rule, is fully compatible with various attachments, thanks to which the scope of its potential application significantly expands. Instead of a drill, you can attach, for example, ring dust or a mixing attachment.
A distinction should be made between an impact driver and a similar drill. The latter, being focused on making holes, assumes the longitudinal direction of impacts, while the screwdriver strikes as if longitudinally, due to which the torque significantly increases.
It is logical that such a tool is somewhat more expensive than unstressed models, but its purchase is often justified even at home. The external, load-bearing walls of multi-storey buildings are usually characterized by the highest strength, which only an impact screwdriver can overcome.
The device is also appreciated by professionals who drill walls or various parts on a daily basis. According to them, for all its assertiveness, the drill of an impact driver usually does not cause significant damage to the fasteners, increasing their durability. This characteristic is especially valuable in the context that the same tool is often used to assemble furniture.
Impact screwdriver classification is NOT so extensive, but it can still drive many inexperienced consumers into a dead end. The logic of dividing tools into drills, screwdrivers and screwdrivers confuses most of all, but in fact everything is extremely simple here: the mechanism is generally the same for everyone, and the exact name depends on the nozzle.
So, a drill is usually equipped with a drill for making holes, and a screwdriver and a screwdriver at the same time know how to screw in fasteners. Some models imply a simple replacement of nozzles, therefore they can have complex compound names like “screwdriver-drill”, but if such multifunctionality is not provided, the unit is called the most accurate term.
Often, when choosing, beginners are also confused by the fact that the device is supposedly electric and pneumatic. Electric models The most common, especially at home, but pneumatic. These are only very rare models, which will definitely not be in demand at home, the main places of their use. Various service stations and tire companies.
What are the differences between a hammer drill and a hammer drill. We disassemble in parts
If a distinctive feature for the purpose of rotary hammers and impact drills. This is not enough information, then it is necessary to analyze these tools, disassembling them into their constituent elements. It will be useful to know the differences in design in order to choose the most suitable tool for carrying out the corresponding work.
The considered tools differ in the following structural elements:
- Impact mechanism
- Operating modes
- Tool weight
Consider in more detail impact drills and hammer drills for the above structural elements, and find out when it is better to use the first version of the tool, and when the second.
What does hammer drill mean? What is the difference between a hammer drill and a hammer drill and a hammer drill
For any construction and repair work, a hand-held power tool is used. Rotary hammers, drills and percussion drills. At first glance, this tool looks similar, but differs in functionality. You should know how an impact drill differs from a hammer drill and a hammer drill, what is the difference between These power tools and how to choose them correctly.
Impact drill instead of hammer drill. What’s the difference between an impact drill and a hammer drill. How tools differ
When it becomes necessary to drill holes in concrete or stone, you will need to use a special tool. For such purposes, not only drills are produced, but also perforators. These are completely different devices, which have external signs of similarity. What is the best choice. A hammer drill or a hammer drill for drilling concrete, and what are the differences between these tools? These issues are to be understood in more detail.
Impact drill Metabo SBE 900 Impuls
The model is equipped with a chuck of the proprietary Futuro Plus quick-clamping design, and the operation provides for the possibility of reverse. There is no built-in backlight, but there is a speed control with the support of their constant number under load.
According to specifications The largest drilling diameter in masonry is 20 mm, in metals. 13 mm, in wood. 40 mm. In this case, the maximum size of the cartridge will be 13 mm, and its mount is type 1/2. It is included in the package as well as the long handle, case and drill depth gauge.
Users highlight a lot of positive aspects in this model. In addition, the owners mention some technical features and high versatility of the model.
Pros of Metabo SBE 900 Impuls
- German reliable quality;
- Pulse mode;
- Sufficiently high power 900 W with brushes that automatically shut off when worn;
- Two-speed gearbox, which can rotate with a frequency in the range from 0 to 3100 rpm.
- Long 4m cable;
- The device weighs only 2700 grams without additional accessories.
- Ergonomics, convenient for drilling in hard-to-reach places.
As a result, we can say that this is NOT a professional tool, but at home it will allow drilling holes in stone, wood, metals, plastic and ceramic products, for example, tiles. The housing of the gearbox used is made of a special alloy. It is supplemented with a safety clutch, which ensures safety, for which well-thought-out aerodynamics are additionally responsible, preventing dust from entering the master.
Impact drill and hammer drill. What these tools are for
To find out what is the difference between an impact drill and a hammer drill, you need to find out their functional purpose. Let’s consider each tool separately:
- Impact drill or brace. This is a popular type of electric tool, which is available in almost every craftsman. With its help, holes are drilled Not only in metal and wood, but also in concrete. To drill solid concrete, the hammer drilling mode must be enabled on the tool, otherwise the drill will not go deeper into the material. If the tool does not have impact mode, then it is not intended for drilling concrete, brick and stone
- Rock drill or Drill hammer. This is a professional type of tool, which is designed directly for slotting and drilling work on concrete. Pistol-type devices have a mode switch, among which there is a drilling start function. Enabling this mode allows you to use the tool to drill holes in metal and wood. However, the main purpose of the tool. It works with high-strength materials like concrete, stone, brick, etc.
When a master drills a hole in concrete with an impact gate, he needs to apply a pushing force on the tool. over, the amount of effort directly affects the speed of obtaining the result. Unlike a hammer drill, the hammer drill does NOT need to apply pressure, so the technician only has to guide and hold the tool.
It is interesting! If the hammer drill belongs to the tools for processing concrete and brick, then the drill is more designed for working with metal and wood. Only often in everyday life it becomes necessary to drill a hole in a concrete or brick wall. In order not to buy a separate tool for this, manufacturers have equipped the electric rotors with a hammer drilling function. Due to this mode, you can quickly and efficiently drill a hole in the wall for a dowel.
Which is better: hammer drill or hammer drill?
This question is often asked by an inexperienced man in the street who purchase a tool for the home. In principle, such doubts do not arise in professionals, since they certainly know that behind the external similarity there is a great difference that predetermines the capabilities of THESE two tools.
The drill is originally intended for drilling holes in materials of low density. In wood, plastic, soft metals. The addition of the impact function has significantly expanded the capabilities of this tool, and made it possible, among other things, to easily drill into brickwork and structures made of low-grade concrete. At the same time, like Hammerless drills, with the proper equipment, they are able to work with fasteners. For all their versatility, drills have rather modest dimensions and are much cheaper than perforators. Thus, the main reasons for the popularity of impact drills in the domestic consumer include their versatility, compactness and affordability.
Accordingly, rock drills are heavier and more expensive. When comparing tools with identical power, the weight and price advantage of the hammer drills will be obvious. For example, a thousand-watt two-speed drill Makita HP 2071 weighs 2.4 kg and costs about 5000 rubles. It can be used to drill holes up to 40 mm in diameter in wood, in steel. Up to 16 mm, and by connecting the impact function, “drill” into concrete with a 20 mm drill.
For a perforator M Akita HR 4010 C of a similar power, it will have to be laid out three times more and weighs 6.3 kg. In terms of functionality, a hammer drill is significantly inferior to a drill, since it only hammers or drills with a blow, and these two modes are unacceptable for making holes in wood and metals. But in terms of drilling concrete, the Designated perforator is out of competition, since it will “pull” not only storms of large diameter (up to 40 mm), but also a drill bit (up to 105 mm). In addition, this tool can easily replace a jackhammer and greatly facilitate the work of installing niches and openings, laying communications, chipping off old ceramic tiles, etc. Of course, such a hammer drill is intended exclusively for professionals and is unlikely to be useful in everyday life.
However, among the hammer drills there are also “lightweights”: for example, the Makita HR 1830 weighs only 1.7 kg, and the price is inferior to the Makita HP 2071 impact drill. Both of THESE tools work in the mode of drilling and drilling with a blow. over, with the help of a drill, you can arrange technical holes of a much larger diameter in concrete (without taking into account hardness), and in wood, and in steel.
A natural question arises: what is the difference then? First of all, the difference in power consumption: for the compared hammer drill, the power consumption is 440 W, and for the drill. 1010 watts And this is the corresponding load on the network and the cost of paying for electricity on the one hand and an indicator of performance. With another.
But the main difference lies in the purpose, in particular in the main object of the application of efforts. For drilling concrete drilling. It is available as an additional option, and in the hammer drilling mode the tool works on “self-destruction” (more on that below). A hammer drill that easily breaks a monolith, and will not provide high precision drilling holes in steel, wood and plastic. The reason for this is the design features of the percussion mechanisms of drills and perforators and the used cartridges for fixing the equipment.
In impact drills, the impact is generated mechanically. Everything is extremely simple there. Two toothed ratchets in drilling mode without impact rotate interconnected by the teeth, as a whole. When the impact function is turned on, the internal ratchet (located closer to the engine) moves back, and the external one begins to “recount” its teeth with its own. As a result, impact energy is NOT generated as such: the impact force is predetermined by the height of the teeth and the pressure exerted on the tool by the user, and the frequency of impacts. Number of teeth and rotation speed.
This is where the aforementioned “self-destruction” comes from. No matter how strong and wear-resistant the material used for the manufacture of ratchets, sooner or later the teeth will “come together” and the impact mechanism will finally fail.
The nature of the impact in rock drills is completely different. The crank mechanism converts rotation from the engine into reciprocating movements imparted by the piston. That, in turn, activates the firing pin, but not directly, but through an air gap, which reduces the load on the piston, contributing to the very durability of the tool as a whole, and reduces recoil. Such a percussion mechanism is three times more effective and, of course, more reliable than a drill “ratchet”. In the presented model range of Makita rotary hammers, the impact energy ranges from 1.3 to 19.7 J (models HR 1830 and HR 5210 C, respectively).
Some conclusions can already be drawn from the above. For example, if intensive work on concrete drilling is ahead, the hammer drill will “die” pretty soon, and the “heavy” one will NOT overcome at all. And it is true. But do not be fascinated also by the versatility of three-mode rotary hammers, which are declared by manufacturers as jack of all trades. As a rule, these are instruments of light (up to 4 kg) and medium (5-8 kg) class. Such rotary hammers, and “heavy” ones too, are equipped with SDS keyless chucks. Plus and SDS. Max, designed exclusively for Special attachments. Drill, blades, etc. The shanks of which have a well-defined shape (the presence of grooves and their number). Consumables for rotary hammer drills are much more expensive than conventional drills, and the use of the latter is NOT possible due to the specifics of the cartridges. To expand the capabilities of rotary hammers, manufacturers quite often complement their models with additional cam chucks, which are mounted in standard SDS-type holders by means of special adapters. At the same time, the tool becomes more bulky, and the runout of the chuck increases significantly, which does NOT benefit the quality. Interchangeable chucks are an alternative for more precise drilling. In this case, the main SDS chuck can be easily dismantled, and in its place, thanks to the adapted tip, a conventional cam chuck is installed. For cylindrical drills. Example. Hammer drill Makita HR 2811 FT with removable SDS chuck. Plus. It should be noted that such a layout is not so common so far and significantly affects the price of the instrument.
So, answering the first question, we have already noted its inaccuracies. Both drills and rock drills are equally good, but only in the area for which they are intended. The hammer drill is ideal for drilling holes in wood, metal, plastic, brick and lightweight concrete. In addition, it can be used to work with fasteners, and at low speeds as a mixer. The hammer drill is preferable where you often have to drill and hammer concrete (and reinforced concrete) of varying degrees of density, but It will not provide precision drilling in metals and wood. Hammer drills, which are equivalent in power to impact drills, are significantly superior in weight and cost. When working with concrete, rock drills are much more reliable, practical and durable than impact drills. The versatility of impact drills will come in handy in a domestic environment, and hammer drills are more “professional”. But if you live in a building made of glass and concrete, then, in addition to a hammer drill, it will be useful to have at hand NOT the most expensive and powerful, but a hammer drill.
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