How to install a drill bit. Drill whisk

Grinding and polishing with nozzles on the drill and electric screwdriver types and purpose

Among hand tools, the hammer is in the lead, while the first place in the arsenal of power tools takes the drill. Electric drill not only drill holes in metal and wooden structures, but also perform work on polishing and sanding various surfaces. To do this, you need to buy a drill attachment for polishing and sanding. With it you can implement such tasks as removing minor scratches on the body of cars or stripping the surface of wooden structures and workpieces, you can quickly and easily.

When it is necessary to polish, sand or clean the surface, then special attachments that are fixed in the chuck of power tools, such as a drill or an electric screwdriver will help to solve such problems. Such devices are used in different areas, such as mechanical engineering, construction, car repair, carpentry, jewelry shops, industry, etc.п. For car polishing you will not find a better tool than a drill with a special attachment to it.

This is interesting! Polishing attachments are available for the angle grinder, but it is not always rational to use an angle grinder as a polishing tool. It is connected with a large number of revolutions that the power tool produces. Polishing with an angle grinder can burn off the top layer of paint coating.

Polishing nozzle on the drill can be used for processing a variety of materials. metal, ceramics, concrete surfaces, marble, granite, glass, wood, plastic, etc.п. If there are small scratches on the car body of the paint coating, you can eliminate them with a sanding nozzle fixed in the chuck of the power tool.

Other handy bits for the drill

The next group of nozzles for the electric drill is designed to help its owner in carrying out a large amount of single-type work.

1.A nozzle for placing aluminum rivets.

There are quite a few different designs, both for one size of rivet and with interchangeable sleeves for different diameters. Such a nozzle will be very useful if such fasteners have to be made frequently:

And it’s not just about the automation of manual work, but also about the speed at which this kind of work can be done.

It is even more than the previous one to save time in the construction of drywall partitions or large amounts of fastening other sheet materials with screws.

Such an attachment costs many times less than a manual belt sander, and you can do the same work with it, which virtually eliminates some of the difference in convenience in the work.

A drill bit that converts the drill into a rotary tool would be helpful. We have already written that an impact drill (link to article), due to the specifics of formation of a micro impact, it is not under force to perform the work of a peorator, and the more to get a blow without rotation. The same nozzle is nothing else but an impact assembly of a peorator, which makes it one of the most necessary in a household for an electric drill.

Only to use it to its full extent, it is worth buying a chuck to fix the corresponding tool.

Angle pruner attachment will be useful for cutting thick power electric cables, as well as for trimming rather thick branches of trees.

If you want to save money on buying an electric jigsaw, and work for it is occasionally found, the appropriate attachment will help turn your drill into it.

Attachments for adapting an electric drill into a handheld circular saw can also come in handy at home

Not to mention such small but useful attachments as a sharpening nozzle for small-diameter drill bits, a pump nozzle for pumping small amounts of liquid, or a nozzle for polishing different surfaces.

It is clear that instead of polishing nozzle can be inserted into a drill various stripping, grinding and other nozzles, about which we will not write in this article because of their wide popularity and applicability. About different types and kinds of drills and core bits, which are used directly in the drill.

Of course, there are also more exotic drill bits:

But the most commonly used nozzles for drills are gathered in the short

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Main advantages and disadvantages

With all the variety of applications, the grinding nozzle is still an auxiliary tool. When working with them, a drill weighing several kilograms has to be held in a perpendicular position and most often by weight, which primarily affects the duration and accuracy of processing. But many one-time jobs are done in a short period of time and do not require much precision. And some of them, such as scraping and snagging, are not critical to the type of tool at all. The undisputed advantage of all drill bits (not just sanding bits) is their low cost and availability. With their help you can get a result that, compared with specialized tools will have a slightly worse quality and require longer work, but will cost the home maker only a few tens or hundreds of.

The design and material of nozzles for drills depends on the type of technological operations in which they are used. For cleaning and deburring surfaces use different types of brush nozzles, and for pre-sanding. flat or petal based on coarse sandpaper. Fine abrasives or non-woven fabrics are used for fine grinding and polishing. In the latter case, they are often used with grinding and polishing pastes and sprays. When grinding requires the removal of a thick layer of material, including unevenly, various types of hard abrasives from aluminum and silicon compounds are used.

Disc and fan nozzles

The circular nozzle for drills consists of tightly spaced radial fibers, diverging from the center of the tool. Depending on their purpose, the fibres can be made of different materials. Steel wire filaments with a thickness of 0.5 m are used for scraping rust and old paint.2 mm, and for grinding. from polymeric materials. The working surface of such a tool is not only the horizontal plane but also the lateral edge. That is why they are used for sanding narrow gaps and other hard-to-reach places.

Petal circles are also used as drill bits. They consist of many identical strips of sandpaper, fixed by one end to the axis of rotation, resulting in a dense circular brush of abrasive blades. Because of the external resemblance, such nozzles are commonly called fan nozzles.

Drum or cylindrical nozzles

Drum sanding bits for drills consist of a cylindrical mandrel with a shank and a ring of sandpaper connected to this mandrel. Its drum is usually made of dense rubber or other elastic material. A special mechanism is used to prevent the sandpaper from running off. After the grinding belt is put on, the drum is deformed by tightening the nut on the shank, which increases its radial size and tightens the belt. And to remove it, you need to loosen the nut and return the drum to its original state.

Drum nozzles along with socket nozzles are very often used in fixed drills for detail grinding and tool dressing.

Plate nozzle

A plate drill bit is a plastic sanding disc with a cylindrical shank, to the outer surface of which a round sheet of abrasive is attached. The sanding pad is secured with Velcro, and there is usually a layer of soft elastic material between the surface of the plate and the Velcro. It is necessary to ensure that the abrasive sheet more closely adhered to the work surface and repeated its profile, as well as serving as a compensator for deviations of the drill from the vertical axis. Without such pad, at any deviations from the vertical, the plate will cut into the depth of the surface with one edge and create deep risks on it. Therefore, hard plates are mainly used for grinding in fixed drills. The thickness and material of the soft pad depend on the type and mode of processing. For fine grinding or polishing, it can be a thick layer of ordinary foam.

In addition to conventional ones, drill plates with articulated shank attachment are also available. This solution reduces the thickness and increases the rigidity of the pad.

Soft nozzles

Soft drill bits use felt, felt, twisted threads, woven materials and foam rubber as working material. As a rule, such tools are used for polishing metal, wood and paintwork, including with polishing pastes and suspensions. Soft tips have the shape of disc, ball, cylinder and are fixed to the shank by two pressure washers. One of the most common examples of their use in the home is polishing car paintwork with a drill and foam discs.

End bits

Abrasive nozzles for drills are one of the varieties of scrapers. a locksmith’s tool, which is used for manual turning of profile surfaces, enlarging holes and removing excess metal layer in hard-to-reach places. Such a burr is a cylindrical shank with an abrasive head pressed on its front end. And the name “end tool” is due to the fact that machining with such a tool is most often performed in the perpendicular direction. There are many different kinds of sockets available as round, conical, cylindrical, parabolic and so on. So it is always possible to choose a cutter whose geometry corresponds best to the profile to be cut. The abrasive heads are made of various grades of high-hardness abrasive stone. In a fixed drill, the cylindrical bits can be used to sharpen the locksmith’s tool.

How to insert a socket with a drill bit into an electric screwdriver: detailed instructions

Now step by step on how to change the bit with a drill bit in an electric screwdriver:

• Disconnect the device from the mains, check it.
• Take out a new drill bit, carefully clean it of dust, dirt. First of all, this applies to the “tail”.
• Unclamp the chuck jaws. If it is a quick-action chuck, this is done manually. jaws of the toothed bit are unclamped with the wrench.
• Remove the old drill bit if this has not been done before.
• Insert the new item with its “tail” into the hole as far as it will go.
• Depending on the type of chuck, clamp the jaws manually or with a wrench.
• Insert the bit with the drill bit into the electric screwdriver tightly and evenly without any visible play.
• Switch on the electric screwdriver, check if the new cutting element works correctly.

What is the type of shank on the adapter for the geared drill bit?

Relevant question about what type of shank has an adapter for drills to be fixed in the chuck of the peorator. Manufacturers produce only one type of adapter, which can be installed only in units with sds plus chucks. Manufacturers do not produce such adapters for units with sds max chucks, and the reasons for this are the following factors:

• Peorator with sds-max chucks have no drilling option, so it is impossible to use usual drill bits for metal or wood in such tools
• Tools with sds max chucks are quite powerful (from 1.5-2 kW and above), so it is simply not rational to use fragile drill bits in them. They will heat up quickly, wear out, and fracture

In the end, it turns out that adapters under peorators for the installation of drills are used only in power tools of the household and semi-professional type. Such units have the following options:

• Chuck speed control, which allows the tool to be used not only for drilling metal and wood, but also for mixing mortars
• Mode switch, which allows you to turn on the drilling mode. It is in this mode that you can use drills from the drill in the peorator, installed through a special adapter
• Reverse is another useful option, which allows you to release a jammed drill bit in a metal base, or to make mixing mortar in two directions

This is interesting! If you have a barrel peorator or straight, but without a drilling mode, it makes no sense to buy an adapter for drills, as it is not only impossible, but also impossible to use in such tools.

Milling attachment for a drill

If there is a need to carry out milling work, it is not necessary to purchase special equipment. The milling machine can be easily replaced by a drill with a special attachment.

Stand is a stationary device, the tool itself is attached to it. Such a device allows you to drill a flat hole with the least amount of labor.

• stationary. they weigh a lot and have a higher cost (analog of a machine tool);
• mobile (devices in the form of attachments or guides).

Some manufacturers expand the functionality of stands and produce devices with jaws or dust collectors.

Concrete drill bits for drilling holes of large diameters

Drill bits are used to drill holes in concrete. But when you need to drill a hole with a large diameter, such as sockets and switches, then core drill bits for concrete are used for the work. They have a more complex construction as compared to drills for peorators, and consist of the following elements:

• Shank. for fastening in a chuck
• The working part is a bowl of the appropriate size, on the edges of which there are teeth with a tipped tooth made of pobedite or diamond coating
• Drill bit is a centering element that allows when drilling with a drill bit, not to shift from the intended area

Not only concrete constructions can be drilled with drill bits, but also reinforced concrete and even granite. Such nozzles can be used exclusively for drilling shallow holes in the wall. Among drill bits features it is worth mentioning that they can be dismountable or solid. Collapsible drills are considered more popular, because they allow you to change not only the center drill bits, but also the cups of corresponding sizes. However, although they are versatile, they are less reliable, depending on solid crown drills.

Bowls on crowns are of two types. with holes and without them. The presence of holes means that the nozzle does not need to be cooled when working. If there are no holes, it means that the nozzle needs additional cooling during operation. Cooling is provided by watering or special cooling liquids. When drilling concrete it is not necessary to use liquids, unlike when drilling granite or reinforced concrete.

This is interesting! Core bits come in various diameters from 26 mm to 600 mm. Bits with large diameters can be used only in high-powered rotors with power output over 1.5-2 kW. It is necessary to drill with core bits on concrete in “drilling with impact” mode.

How to change the nozzle on an electric screwdriver

Changing the bits on this tool is the most common procedure. The process itself is not complicated but it does require attention and care:

• By unscrewing the sleeve counterclockwise the old (unnecessary) sleeve is removed;
• a suitable new nozzle is selected;
• They are mounted in the center of the cartridge;
• is fastened by turning the cartridge case clockwise until it is fully seated.

If the tool is in good working order, there should not be any difficulties. In some cases it can be made even easier by using the reverse rotation and holding the chuck.

Constructional features

As mentioned above, almost every type of milling device has distinctive features in design. This is particularly true of the end varieties. But at the same time, there are products with differently shaped teeth.

Important element. teeth

The pointed cutter teeth have a serious disadvantage

Butt-jointed pins behave quite differently. They are not afraid of frequent sharpening or heavy metal work. That’s why they are more reliable and durable. For drills, and for machines in general, this is ideal.

Cutter as a single piece?

In addition to differences in shape, cutters are also subdivided into solid and prefabricated models. The first option is made from a single workpiece. To avoid unnecessary waste of expensive material, many small cutters are made from a single bar. This reduces the cost of the product considerably.

There are also prefabricated models. As the name implies, the cutter is made individually and then all components are connected to each other. often the body is made of cheap steel, while the teeth are made of harder materials (most often alloys). Of course, the cost of construction increases, but thanks to such a device, you can easily replace one component with another.