• What can be cooked from squid: quick and tasty

    Modern construction tools there are tons of additional features. They allow them to stand out from their peers and attract buyers. In addition to the fact that modern rock drills combine the functions of both a jackhammer and a drill, they also allow you to quickly change the chuck attachments, select the operating mode, and control the quantitative indicators of rotations and impacts.

    In addition to those listed, among the additional functions you can often find the presence of a built-in vacuum cleaner. This characteristic should be given more careful attention.

    What is it for?

    Many will not even think about what the function of a vacuum cleaner in a perforator is for.

    It's no secret that dust appears during the operation of the hammer drill. Its quantity and composition depends on the material with which the work is carried out. Someone will consider the presence of dust not so much of an inconvenience, but it should not be underestimated either.

    • In the dust there are also very small particles that settle on the skin and clothing of a person. If they are constantly inhaled, respiratory diseases, as well as allergic reactions, may appear. In addition to a vacuum cleaner, it is imperative to use a respirator and protective clothing.
    • This affects the convenience of the person. Working in dust is not very pleasant, but it is simply impossible to hold a regular vacuum cleaner and work with a puncher at the same time. For people whose daily work is associated with this tool, the presence of a dust collector in it will greatly facilitate the work.
    • Small dust particles have a negative effect on the operation of the construction tools themselves. For example, the boot on the cartridge may fail.
    • After any work performed with a conventional hammer drill, a thorough cleaning is required.

    Even if you only need to drill a couple of holes, then you will have to wipe the dust off not only the floor, but also other surfaces. To keep this step to a minimum, choose a model with a dust collector.

    To make working with the tools comfortable, do not neglect the function of the built-in vacuum cleaner. It will not be superfluous even with minor improvements, and professionals just need it.

    Views

    All rock drills with different types of dust collection systems can be roughly divided into professional and amateur (for home use). Due to their high power and weight, professional ones are designed for certain types of work. Tools for regular use often combine several modes, they are less powerful, and they are lightweight. Naturally, the cost of the former is several times higher.

    Only a person who uses a puncher regularly, on a professional basis, can afford to buy them. With the help of the latter, it is quite possible to make simple repairs with your own hands or periodically make several holes for household needs. Devices for collecting dust and small debris can be of different designs.

    • Special dust extraction system to which you can connect construction vacuum cleaner... Their main advantage is their high power and the ability to absorb large amounts of debris. Portable construction vacuum cleaners do not greatly affect mobility and convenience. Larger industrial vacuum cleaner models often have power tool sockets, which is also convenient. In this case, each device works autonomously.
    • Built-in vacuum cleaner, the work of which is directly related to the hammer drill motor. It can be completely removable or only in part of the container (bag) for collecting waste. Such a dust collector partially hides the power of the rock drill and affects its durability. This system is suitable for instruments with light to medium characteristics.
    • Dust collectors... The essence of the action of which is that they do not allow small particles to scatter in different directions and retain them inside the chamber. Usually these are plastic nozzles in the form of a cone (also called dust caps) or a cylinder. They come in a solid or ribbed cuff that can compress slightly and provide a snug fit. Some of them still have an entrance to which you can connect the hose of a regular household or construction vacuum cleaner. The choice of such dust collectors depends on the type of cartridge, the model of the tool and the maximum possible parameters of the hole (depth and diameter).

    In addition to the above positions, there is universal devices suitable for both a hammer drill and a drill and screwdriver. They are attached to the wall in the manner of a suction cup, and a construction vacuum cleaner creates traction for dust.

    Popular models

    To make the advantages and disadvantages of perforators with vacuum cleaners more clear, consider several popular models.

    • Bosch GBH 2-23 REA proved itself exclusively from the good side. The design of the vacuum cleaner is easily removable. Inside you can see a filter and a container for collecting small construction waste, which is quite easy to clean. Without a filter, the tool works like a conventional hammer drill with two modes. It copes well with the declared functions, retains more than 90% of dust and is convenient for transportation.

    The only complaints were caused by the fact that when connected, such a unit is quite heavy and it is not as convenient to hold it as without additional parts. And the cost is somewhat overpriced.

    • MAKITA HR2432 captivates with reliability and good characteristics... The dust collector can be detached - then you just get a good rotary hammer. The bag is very spacious, even with intensive work it can be emptied every two days. Unlike other analogs, the garbage does not spill out when the unit is turned over. Convenience is especially noted when working with the ceiling - dust does not fly into the eyes and cleaning is practically unnecessary.

    Complaints are caused by the fact that it catches only small particles. Large pieces will have to be removed by hand.

    The storage container is large enough to store the hammer drill when assembled.

    These two models with dust extractors are not the only ones, there are not so many of them on the market, but there is a choice.

    Still, the choice of tool depends on the planned work.... To hang several paintings, you can take the first model. For larger actions, the second is better.

    How to do it yourself?

    The choice of a dust collector largely depends on its cost. It is not always possible to make an expensive purchase. And when buying, it is difficult to take into account all the nuances.

    If you have a rotary hammer without a vacuum cleaner, you can purchase a dust extractor separately. Or make it yourself without spending energy and money.

    The easiest option with the horizontal position of the punch is to make a pocket in the place of the future hole. Plain paper and masking tape work well for it.

    When the rock drill is in a vertical position, with debris flying from above, this method is not suitable. Here you can use any plastic dish, be it a glass or a cut bottle. In the bottom, you need to make a hole equal to the diameter of the drill. During work, if the length of the drill is insufficient, the cup is wrinkled, but retains the bulk of the debris inside.

    Repair, renovation, repair. How many new ideas he gives birth to. In general, the time has come to hang the shelf in an already clean room, where cement and plaster dust is extremely undesirable. You need a nozzle for a vacuum cleaner that will make the process of drilling holes in the wall a dust-free operation. Running for a laptop, quickly sketching a model, starting printing on a SkyOne 3D printer, in an hour we are already using:

    After the first shelf, I was almost satisfied with the attachment. Why almost? Because it is inconvenient to hold with one hand and drill with the other. The nozzle should fix itself on the wall, for this you need to increase the area of ​​the "suction cup". I figured, roughly, what it should be: my vacuum cleaner, which I use for construction works, can create a vacuum of 16 kPa according to the passport, but this is at zero air flow, we will only partially limit the flow by making a suction hole with a diameter of 20 mm. I think that with such a decrease, you can count on 6 kPa. Let's translate into more convenient kg / cm2 (1 Pa = 0.0000102 kg / cm2) and get 0.0612 kg / cm2. I think that the suction force of 2 kg will be enough to fix the nozzle well on the wall, but not tear off the wallpaper. As a result, it is necessary to provide a suction cup area of ​​at least 32 cm2. Yes, the calculation is approximate, inaccurate, but then I will run the model through the program for calculating flows, it is much faster than manually calculating.

    Back to modeling. I tried to make the model so that it was printed without support.

    I run it through the calculation, it is interesting to know the flow rate in the suction and vacuum zone above and inside the nozzle.

    The average flow velocity in the drilling zone was about 70 km / h, I think this will be enough to capture dust from the drilling zone.

    The average pressure above the nozzle was 101.1 kPa, under the nozzle - 95.4 kPa. The pressure difference is 5.7 kPa, lower than desired, given the area of ​​32.7 cm2, 1.9 kgf of suction is obtained. Considering the wear of the filter in the vacuum cleaner and air leaks on the sides, we will get 1-1.5 kgf, I hope this will be enough.

    The rotary hammer is very often used for processing materials, when drilling or chiselling, a huge amount of dust is emitted. These conditions contribute to the wear of the tool and its aggregate parts. It is with the aim of reducing the negative impact on the perforator that a dust collector was created. If we talk about factory devices, then they are active and passive. Active ones have their own drive, but the cost of the tool increases, and significantly. Passive ones take power from the engine.

    Everyone decides for himself whether to install dust collectors or not. Some people use a vacuum cleaner, but this is not always convenient, you have to hold the puncher with one hand. There are many others homemade devices which we will talk about below.

    Homemade dust collectors

    For a long time, paper and scotch tape were considered the simplest dust collector - simpler designs simply not and never will. From these materials, you can make a simple envelope that is glued in place of the future hole. Dust settles inside the envelope, but if the drilling is vertical, then you can use a glass of paper. The disadvantages include the fact that some of the dust will still fly out under the influence of air. The advantages include simplicity and low cost.

    A cut-off bottom of a plastic bottle is often used.

    If we look at the perforator device, we will pay attention to the fact that its engine is equipped with a fan for cooling during operation. This device can be used to make a dust collector on a hammer drill. To do this, you can take a hose and a plastic polypropylene corner for a 20 mm pipe and drill a hole in it for a drill. Then you need to take a container for dust and make a hole in it for the suction device of the perforator. Dust goes into the box when drilling.

    Factory type dust extractor

    A factory-type dust extraction system can be supplied as a set or sold separately - it all depends on the wishes of the buyer. The undoubted advantages include replaceable filters, the ability not to violate the integrity of the instrument, and ease of use. There is only one significant drawback - the device is powered by the main drill motor.

    Self-contained dust extraction

    An independent means, albeit primitive, include a vacuum cleaner hose. It is quite easy to use and does not require any financial costs. The hose can be placed next to the hole. But there are drawbacks to this method. For drilling with heavy hammer drills, you will need help, and some of the dust will still penetrate the room.

    Important! Recently, the so-called vacuum dust collectors have appeared. They are made of a sturdy case and will last for a long time.

    Conclusion

    To summarize, it is better to stop the choice, of course, on factory dust collectors, since they are convenient, compact and do not require additional work for the manufacture and installation. This is an option for those who prefer not to skimp on technical means... For those who prefer to apply their engineering skills in practice, you can use homemade options... True, they will not get rid of dust by 100%, but this is a less costly method, although more laborious.

    The puncher can be used different jobs due to its unique design. Just in order to expand the functionality of the tool, you will need the appropriate attachments for the hammer drill. However, do not rush to buy them, since in the material we will pay attention to all kinds of nozzles for perforators, as well as their main parameters and purpose.

    What nozzles are for a hammer drill

    After the invention of the hammer drill, the functionality of this power tool is expanding every year. Expansion of functionality is achieved due to the release of different types of nozzles, which are capable not only of drilling, but also of hammering, stabbing, destroying, drilling, kneading, gouging, hammering, etc. All these manipulations are carried out using special devices. The following types of attachments are produced on the perforator:

    1. Drills - for drilling holes in concrete and other similar materials
    2. Chisels - special devices designed for removing tiles and crushing concrete
    3. Lance - for punching holes in concrete structures
    4. Shovel - used for chipping channels in the walls, which is performed for the purpose of the subsequent laying of communications
    5. Crown - a device that allows you to drill a hole in the wall large diameter
    6. Mixers or beaters - for mixing and stirring dry and loose materials
    7. Dust collectors - special devices that ensure dust-free drilling operations
    8. To remove paint - special types of nozzles that allow you to remove paint from concrete surfaces
    9. Breaking drill - a special type of drill that is used to make through holes in concrete and reinforced concrete structures
    10. Drills - for drilling holes in concrete and wood
    11. Vibrator - a device with which the concrete solution is compacted when pouring floors, walls and other structures
    12. For hammering in nails - the hammer drill can also be used as a hammer. To do this, a special device is installed in the tool holder, which allows you to hammer nails into wood materials.
    13. Yamobur is a nozzle that is designed to drill holes not in concrete, but in the ground. When operating such a device, extremely high-power power tools are used.



    Knowing what nozzles are for a hammer drill, you need to pay attention to their consideration. Of course, the most popular are drills, which are used to drill holes in concrete, reinforced concrete and other similar materials. For this, the drill is selected of the appropriate diameter, which depends on technological challenge... Even if a concrete drill is attached to the perforator, you will still need to purchase them additionally, since they tend to wear out.

    Types of shanks on hammer drill bits

    Before you deal with the types of drill bits, you need to find out what types of shanks are used on such devices. So, perforators are divided into three main types according to their functional purpose:

    • Household appliances are an inexpensive type of impact power tool designed for infrequent household use. These tools use SDS plus type chucks.
    • Semi-professional - rotary hammers that are designed for frequent use, for example, when carrying out construction and renovation works... Depending on the power, semi-professional models can be equipped with two types of chuck SDS plus and SDS max.
    • Professional devices - used exclusively for work. They have only two modes - drilling with impact and a jackhammer, and SDS max chucks are used as an executive element.



    Depending on the type of chuck, nozzles with the corresponding types of shanks are used. They differ not only from each other, but also from attachments for drills and screwdrivers. What is the difference and what parameters have different types of the tail pieces on the nozzles for perforators, we will find out further.

    1. SDS-plus is a shank type characterized by features such as length, thickness and shape. The length of the shanks of the sds plus type is 4 cm or 40 mm, the thickness is 10 mm, and it should be noted in shape that they have 4 grooves. Two slots are open, and two are closed
    2. SDS max - Shanks on attachments for professional rotary hammer drills. They differ from sds plus in such parameters as length - 90 mm, thickness - 18 mm, as well as the number of grooves. In addition to the fact that these slots are larger in shape than on sds +, they also have 2 closed and 3 open types. This design provides better engagement of the nozzle with the working mechanisms of the chuck.
    3. SDS-top is an older type of shank that has a diameter of 14 mm and a length of 70 mm. It's a cross between sds-plus and sds-max. Today they are extremely rare, and are produced exclusively for highly specialized models of rotary hammers.
    4. SDS-quick is a cylindrical shank with 4 parallel lugs. Such attachments can be used not only in the holders of special Bosch rotary hammers, but also in the holders of drills and screwdrivers.



    Today also Chinese developers have made a special shank design called Spline or Spline. They have a cylindrical part with splines that resemble a gear. Such devices are used on Chinese-made rock drills, which are equipped with special types of cartridges.

    Having dealt with the types of shanks for drill bits, you should understand the features of these devices, their capabilities and purpose.

    Drills for rotary hammers

    One of the most common types of drill bits is a drill. It looks like a conventional drill for concrete for a drill, only instead of a cylindrical base for fixing in a collet chuck, there is a special design SDS-max or SDS-plus. Drills are used to make holes in concrete and brick walls... They consist of the following parts:

    1. The shank is the part that sinks into the hammer chuck. Due to the special design of the shanks, the nozzle after installation has a backlash, due to which the impact movement is ensured
    2. The working part is a spiral, which is designed to remove dust and concrete particles from the drilled hole. Spirals can be screw, as well as spiral and flat. If the augers allow you to drill deep holes, then the spiral ones are designed to make holes for the installation of dowels.
    3. The tip is the cutting part that also acts as a guide for the job. The tip is welded with hard-alloy materials, which increases the wear resistance of the drills, as well as extends their service life. The tips have not only a different number of edges, but also the corresponding types of sharpening, which affects the quality and speed of drilling holes in concrete



    Drills are produced in different diameters from 12 mm to 60 mm, and they also have different lengths from 10-15 cm to 1 meter. Depending on the task at hand, it is necessary to select the appropriate drill bits for rock drills.

    Chisels for hammer drills and their purpose

    Structurally, a nozzle called a chisel for a perforator is no different from a locksmith's tool. The main difference is the presence of the shank and the elongated shape of the working part. The main purpose of such a device is to chip off concrete, brick, cinder block. During operation, the sharp part of the chisel becomes dull, therefore it must be sharpened on an emery wheel.


    The chisel is also used to remove plaster and tiles from the wall, and ceramic tiles off the floor. The chisels have different thicknesses of the working part, as well as the length, which positively affects the convenience of working with such attachments. The most common devices are chisels with a working length of 25 cm and a thickness of 20 mm. They are available for rotary hammers with sds max and sds plus chucks.

    It is interesting! Like the shanks of the drills, it is also necessary to lubricate the tail section with special lubricants on the chisels. This is done in order to reduce friction, as well as improve the quality of heat dissipation. During the operation of the power tool with different types the nozzles are heated. Moreover, it is no longer the tip of the device that heats up, but the tail part, so it must be lubricated before starting work.

    Pick or breakdown on a perforator

    When working with a hammer drill, a device such as a breakdown or a peak may be needed. Their main purpose is to punch holes in walls and concrete structures. Another peak is suitable for chiselling bricks, as well as for chipping walls for laying electrical wiring.

    If it is necessary to grind a channel in a large-sized wall for laying communications, then first a grinder is used, with which grooves are cut, and then a perforator with a nozzle in the form of a chisel or a peak comes into operation, which depends on the size of the channel. Peaks, like chisels, also dull over time, so you can sharpen them. They also have different lengths of the working part, as well as thickness. They are a great replacement for a wall chaser.

    The scapula and its purpose

    The blade is also called a groove chisel, as it has a similar design. A flat trowel with a wide tip is actively used to remove plaster from walls, as well as to remove paint. For removing plaster, perhaps there is no better power tool than a rotary hammer with a spatula nozzle. In addition, the spatula is also used for chipping walls when you need to get a large channel for laying communications.

    When working with a spatula, its tip is also dulled, which can be sharpened on a special emery wheel. Usually, each hammer drill is equipped with such devices as a lance, chisel and spade, so you will need to buy them in extreme cases when these tools fail or are lost.

    Concrete cores for drilling large holes

    Drills are used to drill a hole in concrete. But when it is necessary to drill a hole with a large diameter, for example, sockets and switches, then core drills for concrete are used for work. They have a more complex design compared to hammer drill bits, and consist of the following elements:

    1. Shank - for fixing in the tool holder
    2. The working part is a bowl of the corresponding size, on the edge of which teeth are applied with soldering from Pobedit or diamond spraying.
    3. Drill - a centering element that allows, when drilling with a crown, not to be displaced from the intended zone



    You can drill with drill bits not only concrete structures, but also reinforced concrete and even granite. Such attachments can only be used for drilling shallow holes in the wall. Among the features of drill bits, it is also worth noting that they are collapsible and one-piece. Collapsible ones are considered more in demand, since they allow you to change not only centering drills, but also bowls of appropriate sizes. However, although they are multifunctional, they are less reliable, depending on the solid core drills.

    Crowned bowls are of two types - with and without holes. The presence of holes indicates that the nozzle does not need cooling during operation. If there are no holes, then the nozzle needs additional cooling during operation. Cooling is provided by sprinkling with water or special cooling liquids. When drilling concrete, it is not necessary to use fluids, unlike when drilling granite or reinforced concrete.

    It is interesting! Core drills come in different diameters from 26 mm to 600 mm. Bits of large diameters can be used exclusively in high power perforators over 1.5-2 kW. It is necessary to drill with crowns on concrete in a hammer drill in the “hammer drilling” mode.



    The Breaking Drill and Its Purpose

    If in concrete wall it is necessary to drill a through hole of a large size, then for such purposes special nozzles are used - break-through drills. They come in one piece or collapsible. Collapsible models allow you to change the tips, which is necessary depending on the size of the hole to be drilled in the concrete. Structurally, a breakthrough drill for a perforator consists of the following parts:

    1. Shank of different types
    2. Extension - its length depends on the thickness of the wall. Usually the length of the extension cord is 50 cm or more
    3. Tip - it is similar in shape to a regular drill, only it consists of several spirals, and also has a large size (like crowns)



    A centering drill is used in the design of the breakaway drill, which eliminates the displacement of the nozzle from the specified target. The destruction of concrete is entrusted to special teeth soldered from Pobedit, which bite into the base and gouge out the concrete, thereby resulting in a hole.

    Rotary hammer mixer attachments

    The hammer drill in drilling mode can be used as a low-speed drill for mixing mortars. To do this, it is necessary to switch the hammer drill to the drilling mode, and also to reduce the rotation speed of the chuck. For mixing dry mixtures, a mixer nozzle is installed in the perforator cartridge, which has the shape of a whisk.

    Dry mixes, as well as ready-made solutions, can be mixed with such nozzles. Moreover, it can be not only substances such as gypsum, glue and cement, but also viscous bituminous mixtures. The design of the rim is quite simple. You can make a mixer nozzle with your own hands if you have welding machine... However, it is important to take into account that for each type of mixture, nozzles corresponding to the shape are used. For sealants, beaters are used, which ensure effective mixing of the solution, excluding the penetration of oxygen into the composition.

    If you are faced with the question of which tool is better to use for mixing the solution - a drill or a perforator, then it is better to choose a perforator that has a large torque, as opposed to high-speed drills.

    It is interesting! Did you know that using a high-speed drill for mixing mortars can cause damage to the electric motor. The reason for this is the high load, which increases the current flowing through the stator and rotor windings. When the winding heats up, the insulation is broken, and as a result, the motor fails.

    Vibrator for concrete hammer drill bit

    A special nozzle called a vibrator is used exclusively when working with pouring concrete mixes... The vibrator allows you to compact concrete when pouring floors, walls or ceilings. Since ancient times, instead of a vibrator, pins and various sticks have been used, with which they pierced concrete and manually removed air from the poured concrete solution. The use of such nozzles is relevant when reinforced concrete structures are poured.



    The nozzle consists of a tip and an extension made of flexible materials. The extension cord has different lengths, which allows you to lower the vibrator cover to a greater depth, which is especially important when pouring walls. The vibrator attachment is attached to the tool holder, and in order to activate it, the tool must be in the jackhammer mode. If you do not use a vibrator, then air accumulations will form in the structure of the poured concrete structure, which, when the solution solidifies, will be a weak point.

    For driving nails in the attachment

    Another hammer drill can be completely free to replace the hammer. For this, a special device is installed in the design of the cartridge. The design of the nozzle resembles an adapter. On one side there is a tip for fixing in the tool holder, and on the other side there is a groove into which the head of the nail to be driven is recessed. The size of the groove depends on the size of the nail head, so these criteria must be taken into account when buying.



    The principle of operation of such a nozzle is quite simple. The hammer drill switches to a jackhammer mode, and a nail is inserted into the groove of the bit. After that, you need to direct the leg of the nail in the direction where it needs to be hammered. Further, after pressing the start button on the perforator, the nail is quickly driven in. In addition to the fact that such a nozzle is used for driving nails, it can also be used to drive pins and even ground rods, eliminating the need to apply titanic efforts to achieve a result.

    Dust collectors for working with a hammer drill without noise and dust

    If you need to drill a hole in concrete, but at the same time you do not want to litter in the room, then there are special nozzles that are designed to collect dust. Such a device is called a dust collector. It works in conjunction with a vacuum cleaner. An extension cord is connected from the vacuum cleaner to the device, which allows work to be carried out without creating dust. This is very convenient when, after finishing the repair and arranging the furniture, it becomes necessary to make a hole in the concrete wall in order to hang the picture.

    The attachment for a dust hammer drill consists of a corrugated pipe that is attached to the tool holder (this is a kind of attachment). The length of such a pipe is 5-10 cm, depending on the drill used in the tool. For dust extraction, it is necessary to securely fix the nozzle to the base. In this case, it is important to take into account that it is not attached to the chuck that rotates, but to the rear part behind the executive body near the auxiliary handle.

    There are dust collector nozzles that do not have a branch for connecting a vacuum cleaner. This is a simplified version that allows for dust-free work. They differ in that the design does not have an additional hole for connecting vacuum cleaners. Such nozzles are usually mounted on a drill installed in a hammer drill chuck.

    A similar attachment is available for drills. Its main purpose is to be able to perform work with a perforator in places to which access is difficult or restricted.

    Drilling bits for wood and metal

    Rotary hammers, which have a drilling mode, can be used to drill holes in metal and wood. For such purposes, manufacturers even produce appropriate attachments - drills with sds plus shanks. If drills are used to drill small holes in metal and wood, hammer drills allow you to get large holes in these materials. This is achieved due to the fact that the tool has a large moment, so it easily copes with the most difficult tasks.

    It is interesting! If you need to drill metal, plastic or wood, then you need to do this exclusively with a power tool that has a drilling mode. If you drill metal in the drilling mode, then not only the drill, but also the perforator's actuator will fail very quickly.

    Yamobur for a hammer drill what is and why is it used

    Everyone knows such a tool as a hand drill for drilling holes in the ground for installing posts. To automate this process, manufacturers produce special nozzles that look like a breakout drill.

    Now you know what the hammer drill bits are called, and what they are. However, the functionality of the tool does not end with the above types of devices. There are many more options for nozzles that are made by hand to facilitate the work of removing paint and varnish from concrete surfaces. In conclusion, it should be noted that the more powerful the tool, the greater its range of possibilities. If you have so far used the hammer drill only for drilling concrete, now you can significantly expand its functionality, saving on the purchase of a variety of tools.