Drills for the engraver's drill. Budget consumables for the engraver

In terms of its functionality, the engraver is very similar to an ordinary drill or grinder, but its main purpose is to process parts that differ in miniature dimensions. Using such equipment and special working attachments for the engraver, you can effectively perform various technological operations, including drilling, milling, grinding, engraving, etc.

The list of materials that can be processed with an engraver is also quite extensive. It is soft and pliable wood in processing, hard steel, brittle glass or ceramics, various types of plastic and even bone. Naturally, for processing various materials with the help of an engraver, different working attachments are used, differing from each other both in design and in the material of manufacture.

What are engraver attachments

Working attachments or tools used for working with an engraver are presented on the modern market in a wide variety. Their design includes two main elements:

a shank with which the tool is fixed in the chuck of the equipment used;
the working part, which performs the main functions, interacting with the processed material.

The choice of working attachments for the engraver is influenced by the following factors: the characteristics of the processed material and the list of technological tasks that must be performed. Those from home craftsmen and specialists who work with an engraving unit on a regular basis try to immediately purchase a set of attachments for the engraver, which includes tools of various sizes and purposes. Depending on the needs and financial capabilities of a particular engraver, this can be a more modest set, which includes several dozen necessary tools, or a professional set, which contains attachments for performing various works on metal, wood and other materials.

When choosing working tools for an engraver, it should be borne in mind that collet chucks suitable for attachments of only a certain brand can be installed on some of his models. To use such equipment in a set with any type of attachments, you will have to purchase universal engraver collets, which are also sold in whole sets.

Diamond burs for engraving work

The most popular types of working attachments used to complete engraving machines are diamond burs for the engraver. The basis of such a tool is made of tool steel, and diamond powder is applied only to their working part. The mechanical characteristics of diamond powder make it possible to successfully use the attachment for processing such hard materials as steel, ceramics, glass, artificial and natural stones.

Diamond burs (or cutters) are mainly used for finishing shaped holes. As a rule, diamond consumables for an engraver are sold in whole sets of 10–20 tools of various shapes and sizes. When working with them, you should strictly follow the rules of their operation so as not to damage the diamond dusting. The standard shank diameter of diamond engraving bits is 3 mm.

Abrasive tools

The most budgetary option for use in a set with a drill or engraver are nozzles, the working part of which is made of rubber and abrasive material. Their shank diameter is 2.3 mm, and they are mainly used for metalwork, including stainless steel. Abrasive tools are usually sold in sets of 6 and come in a variety of blade configurations.

Individual manufacturers (in particular, the company "Fit") produce abrasive engraving tips in various colors, which allows the user to easily determine the category of the tool. So, abrasive cutters of red color, intended for work on metal, are made of aluminum oxide, and green ones, made of silicon carbide, are used for processing products made of stone, glass and ceramics. For the convenience of performing various technological operations, diamond cutters are made with a different shape of the working part, but their shanks always have the same diameter.

With the help of abrasive nozzles for the engraver, such operations as boring holes, surface grinding, etc. are performed. These nozzles are optimal for use at home, for a professional their capabilities will not be enough.

Working attachments for grinding and polishing

The engraving machine, as mentioned above, can be successfully used for fine grinding and polishing of products from various materials. A roller cutter made of felt is used as a working nozzle for performing such technological operations. Since the felt does not differ in outstanding abrasive qualities, such a tool is used only in conjunction with special polishing pastes.

The choice of polishing pastes of a certain type, which in their characteristics and chemical composition seriously differ from each other, depends primarily on the properties of the material that will be processed with their help. So, grinding of hard metal surfaces is performed using pastes, the basis of which is paraffin wax and polishing powder. For work on wood and glass, special polishing pastes are designed based on diamond powder of various fractions. With their help, you can not only effectively remove scratches from the surface of wood and glass, but also bring the product to a perfectly smooth state. Experts recommend giving preference to those in which diamond powder has a fraction size of 3/2 and 5/3.

Accessories such as felt grinding attachments for working on wood, metal, glass and other materials are successfully used not only in conjunction with a specialized engraving machine: they can be equipped with a dental drill and simple hand-held devices.

Working attachments for professional engravers

A separate category of working attachments, which are equipped with engravers, is made up of tools of the professional series. Specialists for whom work on an engraving machine is the main occupation, as a rule, have at their disposal whole sets of various attachments that differ from each other in the material of manufacture, design and shape of the working part. If we talk about the most typical composition of such a set, then it necessarily includes:

cutters for the engraver of various shapes, sizes and designs;
drills that turn an engraving machine into an efficient drill;
diamond, abrasive and felt cutters;
wire nozzles, with the help of which they clean the treated surfaces from traces of corrosion and other contaminants;
cutting discs for the engraver, which are difficult enough to purchase by the piece.

The fact that a specialist using an engraver in his professional activity has such a capacious set of tools is very simple to explain. Often, only a milling cutter, a cutting disc for an engraver and other tools of the same standard size does not allow to perform a high-quality and accurate study of the smallest details on the surface of the workpiece. That is why, even within the framework of processing one product, the tools often have to be changed, choosing the attachments that are suitable for performing a certain technological operation.

In addition, the availability of a set of tools by a specialist, which contains drills, milling cutters, cutting wheels for an engraver and cutters of many other types, is an indicator of professionalism and indicates that you are an experienced person who knows his job well. Craftsmen who constantly work with engraving devices choose expensive sets of tools of the professional series also for the reason that it is quite difficult to purchase individual tools from such sets (in particular, a cut-off wheel for an engraver).

Brand overview

Today, it is not a problem to find engravers and working attachments for equipping them on the domestic market. At the same time, the variety of equipment and tools presented in the free sale allows you to choose them according to your needs and financial capabilities.

Professional-grade tips

Those craftsmen who are engaged in engraving on wood, metal and other materials at a professional level and already have the appropriate equipment at their disposal should pay attention to the working attachments produced under the Dremel and Dexter trademarks. The high cost of such equipment for the engraver is fully justified by its exceptional reliability and durability. Another important advantage that the milling cutter, cut-off wheel, drill, as well as any other tool of these brands differ, is the high processing accuracy.

Having opted for Dremel or Dexter working attachments, keep in mind that one such tool can last as long as 10 Chinese-made attachments. In favor of the acquisition of rather expensive, but high-quality products from well-known manufacturers, the fact that in the assortment of these companies you can find nozzles for various purposes and standard sizes also speaks. So, it can be various cutters for a drill or engraver, drills of different diameters, disk tools, as well as cutters of any other types, designed to perform work on wood, metal, ceramics, glass.

Budget models

Cheap, but decent in quality, nozzles are offered by a domestic manufacturer - the Zubr company. For affordable prices, you can purchase sets of nozzles, which include up to 180 tools of the most popular types, designs, sizes and shapes. These sets include drilling tools, cutting discs for a drill or engraver, milling bits, diamond and abrasive cutters, and much more.

All attachments included in the set of the Zubr trademark are placed in a plastic case, which provides convenience for both storage and transportation to the place of work.

Nozzles from Chinese manufacturers

There is a double opinion about the nozzles made in China. On the one hand, their quality and reliability are in question, on the other hand, they cost much less than branded equipment. A Chinese milling attachment for an engraver, a cut-off wheel or a drill for drilling will not last long, but it will not be so a pity to throw them away, given their cost. If a professional works for the engraver, then even a cheap Chinese cutter will not prevent him from performing the work efficiently (although he will have to change such a tool more often).

Chinese attachments for a drill or engraver can be recommended for novice engravers who can use them to acquire their first skills in this matter.

Affordable prices of Chinese nozzles allow you to purchase large sets "for trial" for novice engravers

Homemade attachments for engraving machines and drills

For simple engraving work in a home workshop, a cutter, a cutting disc, grinding and polishing cones can be made with your own hands. As a simple cutter for equipping an engraver or a drill, you can use a grooved wheel from a conventional lighter or a dowel, on the head of which working teeth are cut. A working attachment for grinding or polishing is also quite simple: for this you can use a wooden drum with a shank, on the side surface of which sandpaper is glued.

Many homemade engraving attachments (if they are used to do not too difficult work) perform well, while the cost of their manufacture is minimal.

If you are tired of buying cutting discs for an engraver / hand grinder or dremel, then this is just what you need!

Recently I have to work a lot as an engraver or, as it is also called, a hand grinder. I cut metal 0.8 mm thick with a small cutting disc.

The 2 discs that came in the kit were quickly ground off - just in a matter of minutes. I drove into a few shops - asked around - they don't have such a small tool.

Climbed to the sites to look - the price was not very pleased - many times more expensive than ordinary cutting discs for a bulletin board)

I found a way out quickly.

I bought cutting discs 125x22x1mm - 1 mm thick. The price was about 50-60 rubles (good quality brand)
I took some kind of cork (about 30 mm in diameter), circled it around - we got circles on the disk. 12-14 small cutting discs come out on one disc (depending on how they are positioned).
I cut them out with ordinary metal scissors. Abrasive is cut like cardboard.
After that, in the center, I punched a hole for fastening in the holder. We take a small carnation and punch a hole in the center, slowly scrolling the disc.

Even if you cut out a disc not quite exactly in a circle, then in the first minute of work everything will be centered.

Let's calculate the cost of one small disc for an engraver:

With the price of a disc 125x22x1mm 60 rubles, if you make 12 small discs from it, then the cost of one is 5 rubles.

This is what the price of these consumables should be, and not as it actually is - more expensive than a regular drive from a grinder!

It is cut wonderfully!

One such small cutting disc is enough for me for a cutting length of 6-8 meters when cutting metal with a thickness of 0.8 mm and normal pressure.

Here is my hand engraver. There is a sleeve to it. I work with a sleeve - it's very convenient. We must not forget to lubricate the cable inside the sleeve.

Allows you to perform an impressive range of operations for the processing of materials of various kinds. However, it is impossible to fully realize the potential of such a tool without the availability of the appropriate equipment. However, it will not be difficult to understand the variety of drill bits.

The entire range of accessories for hand drills can be divided into three categories:

The main one is designed to work for the intended purpose of the tool.
Additional - expanding the capabilities of the drill.
Other, allowing to increase the convenience of work, to ensure the repeatability and manufacturability of processing.

Each of the types of equipment has its own characteristics of choice and use, so we will consider them separately.

Basic equipment

The direct purpose of the drills is to remove material from small areas of the part along a complex profile and shape. This can be done in different ways, having previously determined the appropriate processing modes. In total, two groups of modes can be distinguished: processing by cutting (milling) and grinding.

Milling attachments

The first and most extensive class of drill accessories are various types of burrs. All of their diversity can be classified according to a number of characteristics, of which the size and shape of the working part is of the most practical importance. The tip of the bur can be needle-shaped, spherical, disc-shaped, and also have a flame tongue profile, a cylinder with a straight and rounded end, a straight and reverse cone.

By design, the burrs can be divided into solid carbide, steel (including those with a carbide tip), as well as diamond:

Solid carbide burs made of tungsten carbide are intended mainly for large material removal, their main working surface is lateral. These cutters are usually large enough and designed to maintain cutting properties over a long period of time. The large size of the burs allows for a wide variety of flank profiles, which contributes to high-quality profiling of grooves and grooves. For solid carbide, the notch pattern of the cutting edges, their size, shape and sharpness are extremely important. A distinction is made between straight, cross and spiral cuts, which contribute to the most efficient chip removal, depending on which part of the cutter is used as a working tool and which material is being processed. A separate type of rotary cutters - spear-shaped, serving as a kind of analogue of graters and single-tip cutters, as well as studded ones. These are extremely productive handpieces for roughing deep grooves and cutting edges.

Brazed steel burs have a common drawback - poor resistance to lateral loads, which often results in breaking of the working head. The main working surface of such rotary cutters is end, they are designed to form deep grooves and grooves of complex shape. There may be no soldering, which makes such a burr unsuitable for working with dense and hard materials. The main advantage of steel burs is their relatively low cost and high durability; this tool is most often used in the manufacture of plastic and softwood parts.

Diamond burs Is the most versatile tool. Thanks to the powder coating, all surfaces of such a nozzle can be equally effectively used as workers. The disadvantage of diamond burs is the low productivity of work at low speeds, as well as the relative fragility when processing viscous and melting materials. The field of application of diamond burs is the processing of natural and artificial stone, bone and hard steel alloys. The durability of diamond burs is determined by the number of diamond spraying layers (1, 1.5, 2), as well as the degree of binder coverage of the cutting particles (35-60%).

Most types of cutting equipment are of dental origin, from which the notation system is borrowed. Burs are distinguished by the colored band on the clamping part, depending on the fineness of processing. Tungsten carbide burs and green belted tips are designed for quick removal of large quantities of material. Burs without color coding, as well as with yellow and white belts have 8, 16 and 30 cutting edges, respectively. Color coding is also used for diamond burrs: black, green and unmarked tips have correspondingly increasing grit sizes for rough cutting, while red, yellow and white tips have the smallest diamond grit sizes for fine finishing.

Grinding and polishing

The second type of processing that drills specialize in is abrasive grinding. In part, diamond burrs could also be attributed to the grinding equipment, but in reality, during grinding, an active development of the working body occurs, while the powder of the diamond tool practically does not crumble.

Grinding with drills is used in the final stages of processing and is not intended to remove large portions of material. The features that distinguish grinding equipment are the same as for milling cutters: the size and shape of the working part, as well as the cleanliness of processing.

Grinding stones are the most common type of accessory for rough processing of light surfaces. Disc stones are used for grinding external surfaces, cylindrical cutters - for internal ones. The color of the stone determines its granularity, but there is no general classification in this matter, each manufacturer arbitrarily determines the marking. Grinding attachments are also completely different and differ in a number of ways:

One-piece version or on a holder bar. The fundamental difference is small: replacement stones are simply more profitable for large volumes of work, but at the same time, serious problems with centering can be observed. It is recommended to use rods and nozzles of the same series, since the diameters of the fit are almost always different.
By the type of abrasive. There are abrasive natural stones, fused alumina and silicon carbide on polymer bonds, as well as fine-grained abrasives bonded with rubber. Each type of abrasive and bond is used exclusively for a limited range of materials specified by the manufacturer.
In terms of size and shape, this is practically the same situation as with rotary burrs. In this regard, the choice depends solely on the size and type of workpiece. By the way, most stones can be easily edited to give the desired profile.
By the presence of plasticity. Grinding stones can be either completely hard or slightly elastic. The latter property makes it possible to process surfaces with a fine texture, but microscopic particles of the binder can be strongly packed into the pores of the material being processed.

Also in this category of accessories can be attributed polishing tips. These are discs, balls and cylinders made of felt, felt or muslin. Usually the polishing tips are interchangeable and are used in conjunction with the landing rod. Fastening with a screw or on a tapered thread is possible - there is no fundamental difference. These attachments are designed to work with abrasive pastes: dry polishing is also possible, but for materials such as wood, this often results in the appearance of burns.

Additional equipment

Other types of processing tools can be attached to the holding rods. Basically, such equipment is used for rough and preparatory work. We specially brought this type of attachments into a separate category: they are completely short-lived and rather belong to the category of consumables.

Cut-off and sharpening wheels

Cutting discs and grinding wheels can be attached to a standard bar with a tightening screw. The latter are often made with their own hand with round die cuts from ordinary abrasive paper. Cut-off wheels are arranged according to the same principle as discs for angle grinders, but most of them do not have a reinforcing cord, which is why they quickly crumble and crumble under strong pressure. Diamond cutting discs are the most durable type of additional equipment, mainly used for cutting stone and other hard infusible materials.

Flap type cylindrical grinding heads and cylindrical clamps for abrasive belts are widely used. There are also flap discs that are used for sanding difficult embossed surfaces. Metal and polymer-abrasive brushes are especially popular. Disc harness of this type can also be mounted on rods with a screw clamp.

Features of the choice of collet and flexible shaft

All types of tooling described have standard shank diameters of 1.6, 2.35, 3 and 6 mm. Some manufacturers, such as Dreamel and Proxxon, may have customized shank sizes for some types of nozzles. The problem of incompatibility is solved by selecting collets of the appropriate diameter or adapters. Long adapters for dental cutting heads are especially popular. Adapters must be selected for each individual drill, taking into account the diameter of the bore in the spindle.

For greater convenience of work, flexible shafts can be used, providing access of the working body to hard-to-reach places. Almost all flexible shafts on the market have the same range of characteristics, only the length and diameters of the connections differ. Thus, a flexible shaft can simultaneously serve as an adapter for a different shank diameter. Flexible shafts are designed mainly for work with grinding and auxiliary equipment: working with milling cutters requires a rigid connection with the spindle, while the shaft core has significant radial elasticity.

Other accessories

In conclusion of our review, we will mention some devices, the task of which is to facilitate the work and further expand the range of possibilities of the instrument. First of all, this applies to vertical feed racks, which allow you to turn the drill into a small drilling machine.

One of the most popular drill attachments is the milling support platform. This element must be selected individually for your drill model, because quite often the pitch and thread density of the tool and equipment does not match. At milling sites, the list of body nozzles is not limited: there are also dust collectors, limiters, various stops and jigs, but their purchase or manufacture is usually associated with the need to perform some complex processing operation.

An engraver, or a boron machine, is a very necessary and useful piece for those who like to engage in carving on wood, stone, metal, and so on. But the engraver will work not only for carving. It can also help very well when assembling or repairing something miniature, in order to cut out the necessary part from metal or plastic, which cannot be cut with scissors. Also, they can grind minerals, or just beautiful stones. There are a huge variety of attachments for the engraver: saw blades, grinding discs, stones of various grain sizes, brushes (both simple and metal), felt discs, various cutters for wood and glass, as well as, of course, drills.

Buying such an expensive thing as an engraver is only half the battle (however, making it yourself is also not a tricky business). During the entire period of use, it is also advisable to update and replenish the existing stocks of drills, cutters and other nozzles, which are also not cheap. In any case, they (for some reason!) Are more expensive than consumables and attachments for the same standard size tool. But it is not necessary to buy them all in a row - some of the attachments can be made quite easily by yourself. Of course, such complex tools as a wood cutter, a drill or a diamond cutter for engraving on glass are unlikely to be made, but, for example, small files for cutting wood and plastic, grinding and felt discs can be easily made with your own hands.

Even in the absence of skills. I think that every person is able to cut the correct circle drawn with a compass on the workpiece with scissors. In addition, some consumables cannot be found in regular stores selling this kind of goods. You have to order and wait a long time for them to come, and if they come at all ... And if they come, it is not a fact that they will be of high quality and reliable. The grinding discs I recently received in the mail were so fragile that one of them broke from slight pressure ... In general, if you want to do something well, do it yourself! Today we will consider several options for making a more durable tool on our own.

Saw blades for wood and plastic

You will need:

A metal circle, or a piece of sheet metal, no more than a millimeter thick.
Compass and pencil.
Scissors.
Drill and drill.
Sanding machine with a cutting disc.
Metal bolt with a nut from a children's designer, or from a prefabricated electrical plug.

To begin with, you need to draw a circle on a sheet of metal with a diameter of 3-5 cm.Using a compass and a pencil. I had ready-made metal circles from the chandelier, only with a large hole in the center. In order to adjust the hole to fit a small bolt, we cut out (or take ready-made, if any) two washers so that they cover the hole on the future saw blade. We make a hole for the bolt in the center of each washer, squeeze the disc hole on both sides with washers, align it in the center, and tighten it with a bolt with a nut.

Next, you need to cut the teeth of the disc.

We make oblique cuts along the entire edge of the disc, 3-4 mm deep, and in 2 mm increments. You can use it.

We do the disc for cutting plastic in the same way, repeating the above procedures, with the exception of sharpening the teeth. Here the cuts should be made at right angles, two mm deep, and also two mm apart.

The teeth should be short and wide. This disc can be used to cut plastics of different densities, as well as plexiglass and PCB.

Sanding and felt discs

You will need:

Thin grinding disc (you can use it, or even a fragment, but not thicker than a millimeter).
A piece of felt, 7-10 mm thick (from felt boots - just right).
Compass and pencil
Scissors for metal.
Sanding machine.
Thin bolt with nut.

Here, too, the manufacture is not very different from the first two options. We also draw a circle of 3-5 cm with a compass.

Only the felt is better, probably, to cut out with a sharp knife, since it is quite thick, and I squeezed all my fingers with scissors. And it is better to cut the grinding wheel either with scissors for metal, or on an emery machine with the same cutting wheel. Next, we make holes in the centers of the circles, and tighten them on both sides with bolts and nuts.

For processing small items, a micro drill is often used, which is called an engraver. With the help of an engraver, you can perform the same operations as with a conventional drill, as well as grinding and milling various materials. The frequency of use and the demand for the tool is determined by the quantity and quality of the attachments available to it. Some of them come with the main tool, but many have to be purchased additionally. Today, we will try to learn everything we can about engraver attachments.

Types of attachments for the engraver

Engraver attachments are selected depending on whether wood or metal is supposed to be processed with their help. For example, for woodwork you will need:

Polishing attachments - made of sandpaper or felt.
Ball-shaped nozzles for tongue-and-groove.
Smooth attachments for the final sanding of wood surfaces.
Cut-off discs (can also be used for cutting plastic).
Drills for wood (usually small diameters, up to 3.2 mm).
Milling cutters (required to perform work at a professional level).

Engraver attachments for metal work include the same varieties as described above. The principal difference lies only in the material of the working surfaces. For example, grinding metal requires attachments made of more abrasive-resistant materials - corundum or hard rubber. The same applies to cutting discs, only in this case, high-strength tool steel is used as a material (sometimes even with a diamond-coated working surface). However, there are also specific types:

Diamond cutters, with the help of which the finishing of holes and cavities of complex configuration is carried out.
Coarse sanding attachments. They are supplied with notches, and can, in addition to metals, also process chipboard.
Tapered nozzles designed to produce grooves. Usually they are offered in a set, with different sizes of the width of their working part.
Brush-type attachments that are used to remove scale from the surface of steel products.
Carbide tips that can be used to create deep enough cavities in hardened steel workpieces.

The value of the attachments is determined by their versatility (many manufacturers offer similar products in sets), as well as by the manufacturer. It should be noted here that, as a rule, a company that produces engravers equips them with attachments that are suitable for their products, and it is not at all necessary that for competitors' products.

Purpose and capabilities

First of all, it is worth emphasizing that, due to its low power, a micro drill is incapable of performing any large-scale operations in metal or wood. Therefore, the dimensions of the tool, regardless of where it is produced, will not differ in large dimensions.

The defining moment is the diameter of the seat. For example, the diameter of the drill (like an attachment for an engraver) that can be used depends on the diameter of the chuck. The profile of the clamping part is important here. Manufacturers often implement the principle of point clamping, which simplifies the manufacture and adjustment of the micro drill chuck itself, but the performance of the nozzle deteriorates, especially if the processing process takes a long time. In this case, a beat of the drill appears, and since the number of revolutions of the engraver is high, the breakage of the nozzle will follow very quickly.

The second factor is the functionality of the size of the nozzles. For example, for grinding work, a variety of attachments are available up to 7.8 mm in diameter (for woodworking) and up to 3.2 mm for metal operations. The diameter of cutting wheels can reach 19 ... 20 mm, but this corresponds to work with soft materials (plastic, aluminum, wood), and when working with steel, a drop in the speed of the micro drill motor will lead to its failure.

It is also important to pay attention to the material of the instrument. In particular, attachments for the engraver, which are made of tungsten carbide-based hard alloys (VK8, VK15 and their foreign counterparts) are capable of working on heat-treated metal. They can also carry out processing of glass, stone, mineral ceramics.

Finishing is the main area where industrial diamond engraver attachments are effectively used. Since their cost is very high, they go on sale in small sets (up to 10 ... 20 standard sizes). Diamond cutters should be used only for their intended purpose, otherwise the sprayed layer will be damaged very quickly, which will immediately lead to intense wear.

The most diverse class of abrasive and engraving tips. Their choice is usually made according to the color of the landing part. If it is red, then the nozzle is designed for working with metals, and high-resistant aluminum dioxide is used as the material. Green engraving attachments are effective for engraving work with fragile materials - glass, stone, marble, etc. Sets for such work include up to 10 sizes of attachments.

Above, it was already indicated about the possible incompatibility of the diameters of the nozzles for the engraver with the diameter of the chuck of the tool itself. In addition, one should distinguish between professional and household sets. The first ones are more often produced by the German company Dremel, they are of high quality and price (experts note that the quality of the attachments that come with a micro drill is higher than that of the same company, but purchased separately). Domestic attachments for the engraver from the Zubr trademark are not inferior in quality to the German ones, but differ in significantly lower cost. For comparison - the price of a Dremel attachment is 350 ... 400 rubles. per piece, and a set of more than 150 standard sizes from "Zubr" - only 1800 ... 2000 rubles.

We should also mention the attachments for the engraver made in China. The attractiveness of the price in this case is completely leveled by the low quality of the metal of the nozzles. This can be permissible only in the case when the tool is rarely used, or the task is to learn how to work with attachments of a certain type.

The basic rules of work and the choice of attachments for the engraver relate, first of all, to the tool of the middle and budget price category and are as follows:

The choice of the diameter of the nozzles from a specific set should be carried out in accordance with their subsequent use;
For engraving, you can also use nozzles made in China, especially well they get diamond nozzles with a spherical head;
DIY tips are a great option for experienced DIYers. As a material, you can use plywood (it surpasses rubber in its resistance), as well as felt, emery, etc. using an industrial nozzle. For polishing, diamond paste with grit 3/2 or 5/3 is most suitable .;
In any case, when using attachments, a respirator should be used, otherwise the dust generated during work will completely enter the lungs.