Wood cutter for drill - review, instructions for use

The functionality of electrical appliances can be increased by connecting devices and various additional accessories. Thus, a wood cutter for a drill allows you to work with wood and cut shaped notches in timber. They achieve a high-quality level in roughing or finishing of blades by installing working attachments with an actuator.

Wood cutter for drill

Manufacturers have produced various types of cutting elements, but they need to be selected correctly; they must be suitable for working with a specific drill.

general information

The drill cutter is one of the replaceable elements. Each part in the assembly performs an important function. The motor of the electrical appliance transmits the rotation speed to the shaft, and the nozzle with accessories will rotate with it.

Milling cutter

Only the cutter processes a given area. The final result depends on the correct choice of which, combination of parameters, compliance with conditions.

How to choose the right cutter for metal

To choose a metal cutter to complete an electric drill, you should pay attention to such parameters as:

1. diameter;
2. location and design of cutting edges;
3. the type of shank with which the tool is fixed in the drill chuck;
4. material for manufacturing the body and cutting part;
5. sharpening quality.

Shapes of carbide metal cutters for drills

If you need to purchase a prefabricated cutter for a drill, you should also pay attention to how well the cutting part is fastened. Cutting inserts, which are attached primarily by soldering, must fit tightly to the body of the tool, otherwise they may fly out during processing.

The quality of sharpening is an important parameter that directly affects the productivity and quality of processing. Despite the fact that many manufacturers try to sharpen their cutters using a unique technology, preference should be given to tools that are sharpened according to one of the standard schemes.

Each cutter is designed to process surfaces of a certain configuration

Both its durability and the quality and productivity of processing depend on the material from which the cutter is made. To perform one-time milling work using a drill, the quality of which does not require high requirements, you can choose a one-piece tool made of steel of the same grade. If you have to use the cutter frequently, and you need to obtain high-quality products, it is better to give preference to more expensive tools, the cutting part of which is made of carbide plates.

Homemade cutters made from tall hardened nuts and bearing balls welded to them

Many home craftsmen who want to save money on metal cutters for drills make them from improvised materials. Of course, it is difficult to achieve high-quality results using such a homemade tool, but it is quite capable of coping with basic tasks. The following available tools are suitable for its manufacture:

• a corrugated wheel from a silicon lighter (such a micro-mill can be used for quite a long time, and if it fails, it can be quickly and inexpensively replaced with a new one);
• a dowel, on the head of which cutting edges are formed (this way you can make a small cutting cutter that can handle products not only from plastic and wood, but from non-ferrous metals).

To mill metal surfaces, professionals use a special tool - a milling machine and a manual metal milling machine. Such equipment allows you to perform a wide range of work on products made from various materials, but its acquisition is not economically feasible for home craftsmen and small workshops. Simple operations can also be performed using a widely used alternative - a hand-held electric drill.

How the cutting part works

Actuating mechanism

The actuator consists of 2 elements:

• shank (1) – it is clamped by a cartridge to transmit torque;
• working sphere (2) – there are sharpened blades on the sides of the head.

The configuration of the cutting edge provides different capabilities to this knife. The quality and type of sharpening are used to perform tasks of varying complexity. An additional element - a support bearing (3) - can simplify milling with a drill or expand these functions. For example, process a workpiece according to a template. If the system is dismountable, the cutter with its constituent parts regulate the work processes in the desired direction using:

• locking couplings;
• calibration bushings;
• washers;
• screws

The shank or base of the cutter comes in different lengths and diameters. These parameters are taken into account when choosing.

The chuck must hold the part tenaciously and be long enough to perform specific operations. The technical characteristics and purpose of the blade determine how much work can be done with it. It is sharpened manually and using high-precision equipment if there are no backlashes in the structural elements. In addition to sharpening, the alloy from which the item is made is also important. The hardness level of the steel must correspond to the structure being processed, in this case wood.

The standard set of cutters includes elements of different parameters and categories in the form:

• mounted, when the landing part with a diameter of 32 mm can only be installed in stationary milling equipment;
• end with a shank from 8 to 12 mm. in diameter, they are mounted on the machine shaft and on the drill.

This assembly replaces a professional milling cutter when processing:

• natural wood;
• plywood;
• chipboard;
• MDF.

When the cutting tool is going to process plywood, a knife with a high level of wear resistance is inserted. Let's say that a jigsaw with its cutting plates contains a strong alloy and is not sharpened.

Purpose of different types

There are many tools available to process wood. Various machines, jigsaws, grinding devices - this is due to different specifications of materials and the complexity of the procedure. Among the tips for drills, the following types are distinguished.

1. Moulding – it is used for rounding corners and grinding them.
2. V-shaped ones are used for making cuts of the same name and creating a groove on a wooden panel. Can also be used to create an inscription or pattern. In addition, the cutter performs edge processing.

3. Disc ones are indispensable for creating grooves, grooves and recesses of any depth.
4. Folded ones are similar to disk ones, but provide greater freedom of action. They are often used to cut a groove for glass.
5. Fillet - to create semicircular grooves at the ends of the workpiece, they are equipped with a special support bearing. Used in the manufacture of furniture slats.
6. Spike - a nozzle equipped with a cutting edge, made in the form of a reverse spike. Used for making dovetail grooves. Great for creating hidden connections.

   Wood cutter, tongue-and-groove

7. Cylindrical - with the help of such a nozzle the flat surface of wooden parts is processed. During manufacturing, the part is equipped with straight or helical blades.

Of course, such attachments are not always able to replace a full-fledged machine or the same jigsaw, but they are quite capable of satisfying a one-time need.

What do they pay attention to?

If you use a drill for milling wood, take into account a number of features:

1. The operation of bearings on a shaft with the calculation of axial longitudinal load. In some types of mechanisms, a lateral force is applied, which affects the rapid wear of parts.
2. Speed ​​of revolutions.
3. Cooling methods.
4. Engine power.
5. Handle placement.
6. Cartridge quality.

Electric drill cutters

The electrical device must be equipped with a function that regulates speed with a large reserve of power - this means that cutters for an electric drill can be installed on it.

If there is incompatibility in the mechanism of devices, negative consequences are possible:

• the tool will overheat;
• the gearbox will fail;
• in the process, a distortion of the workpiece is formed;
• the shank will pop out due to an unreliable cartridge.

There are unwritten rules for milling:

• actions are performed slowly, accurately and accurately;
• check all connections, electrical wiring, fixation;
• Allow the drill to cool periodically.

When large volumes of work are to be done, a carbide nozzle is needed. Only after the equipment is securely fixed in the chuck do they begin to mill.

Choose a knife according to the following criteria:

• size - the parameter affects the assigned technological task;
• shape, configuration, location of the blades;
• sharpening angle;
• manufacturing materials - the performance of various operations and service life depend on the steel;
• purpose - if the milling drill is durable, it is used not only for wood drilling, but also for harder materials.

When buying any product, they visually evaluate it and look at the manufacturer’s company. The reputation of the enterprise will reveal the pros and cons of production. You need to do the same with the equipment. If the buyer is not rich enough to afford a cheap thing, the cutter should be of good quality and expensive.

For other materials

Most of the above cutters are used to work with different materials. But provided that they are made of hard, durable cutting alloys such as HSS or have soldered cutting edges made of hard alloys with tungsten or vanadium carbide. Then they are processed:

• tree;
• Chipboard, laminated chipboard, fibreboard, MDF, OSB;
• plywood;
• drywall;
• solid insulation - polystyrene foam, fiberboard, etc.

A cutter made of weak metal can cope with wood, but on hard adhesive resins chipboard, laminated chipboard, fibreboard, MDF, OSB it will quickly wear off and become dull. The same applies to drywall - it is a soft material, but with high abrasive (erasing) properties.

For plastic

Plastic can be processed with a drill using any of the above cutters. However, plastics are different, including very fragile ones. Therefore, trial processing is required on an unnecessary piece of material. The cutter for such fragile plastics must be sharp. Processing is carried out at maximum drill speed (if there is a regulator), smoothly and without strong pressure.

For ceramics, tiles and aerated concrete

To process hard materials with a drill (ceramics, brick, concrete, tiles), cutters are used - crowns similar to those described above. The difference is that instead of teeth, these special cutters have carbide coating. This could be tungsten carbide, artificial diamond coating, or other alloys that do not wear off on hard materials.

Milling cutter - crown

The centering cone drill is also made of a soldered carbide cutter.

The main purpose of such equipment is to make holes in the walls for electrical sockets, switches, junction boxes, etc.

Design Features

The cutting device is based on the teeth around its body and the manufacturing technology of the structure itself:

• solid - made of one metal composition;
• combined - with knives made of one hard alloy and a body made of another metal;
• welded, when the shank is connected to the blades by welding;
• soldered - the assembly is fixed by soldering.

The blades can be pointed with a front and back flat surface. The disadvantage of such items is that they are sharpened; they shrink in size, so they are not suitable for reusable use. Unlike backed bits, which can be resharpened. On the front side they are flat, and on the back they are twisted like an Archimedean spiral. Such a profile is obtained by uniform movements - translational and rotational. The backing procedure is performed with cams, which creates a stable back angle along the entire length. A similar design is created for cutters:

• shaped;
• worm;
• modular.

Cylindrical peeling knife

The mounted cylindrical peeling knife has separation grooves for chips.

They are directed in one direction, and the backed tooth is directed in the opposite direction. Blades placed in different directions allow high-quality processing of side walls. They are pressed into the body, where the radial corrugations move. After sharpening, the dimensions of the actuator do not change.

Types of grinding devices

Drill attachments for grinding can be divided into 6 main groups. Any equipment is an object consisting of two parts:

1. The shank is the cylindrical part of the nozzle that does not have any irregularities or abrasive material. Designed for mounting in a power tool holder.
2. Working head. It is a part of the equipment on which a layer of abrasive material is applied. Thanks to it, surface treatment occurs.

Depending on the different types of attachments, the shape of the working part, the type of abrasive material, and the size change.

Types of grinding attachments

Plate attachment

The failure is a flat round plate, which consists of a base and an abrasive pad. There can be two types:

• plastic;
• rubber.

Sandpaper of different grain sizes is attached to the base. Large particles are needed for rough processing. Finishing work is carried out using sandpaper with a fine abrasive material.

Special bowls

Sanding attachments that look like upside-down bowls. The base is made of metal or plastic. Metal fibers are attached to it, with the help of which the surface is processed. Using this equipment, a texture that looks like wood is produced. The top is cleaned with a polishing wheel and covered with a protective layer (stain, varnish).

Disc nozzles

Equipment of this type can be compared to special bowls. Discs are products consisting of a plastic base on which a metal pile is fixed. However, unlike bowls, the direction of the villi goes from the center to the edges of the disk. Discs with metallic bristles are used for cleaning hard-to-reach places. To do this, you need to have practical skills in order to be able to effectively use a disk with metal bristles.

Cylindrical nozzles

The second name for such equipment is drums. They are a cylindrical base, at the end of which a tape with abrasive material is fixed. The base is made of durable rubber. A bolt is screwed into its central part from the side opposite to the shank. It is needed to replace the abrasive. Changing abrasive:

1. Unscrew the bolt.
2. Remove the old abrasive tape.
3. Place a new strip of sandpaper glued together into a cylinder.
4. Tighten the adjusting bolt.

Using cylindrical equipment, holes of different diameters are processed and metal surfaces are sanded.

Soft attachments

When it is necessary to finish the protective coating, soft equipment is used. This includes soft leather, felt, and foam rubber. The soft material is secured with a washer. They do not scratch the surface being treated and remove a layer of unevenness, debris, and dust.

End circle

They are abrasive stones of various shapes. They are used during processing of various materials. More suitable for finishing cleaning. The ends and edges of the workpieces are processed with large abrasives. Small ones are used to treat hard-to-reach places and jewelry. A polishing wheel made of fine abrasive material allows for soft processing of metal, wood, stone, and plastic.

Basic actions and their order

Wood is a soft raw material. Different types of cutting tools have been developed for its processing. When choosing equipment you need to consider:

1. The wood cutting knife should not be used for grinding or cutting metal structures.
2. The drill for metals is made of strong high-alloy compounds that cannot negatively affect the operation with chipboard. There will be no overheating of the motor and gearbox. The end blade has this design; it is used to cut sheet material, and small-sized groove milling is performed. Although such models are endowed with a small number of feathers.

Groove cutter with different geometries, convenient for creating long grooves. And shaped cutters are used only for tortuous, complex design configurations.

Edge knife

The edge knife itself speaks about its purpose; it is good for sanding the sides. A bearing is installed at the end of such blades; it regulates the direction and prevents it from moving away from the formation of the edge. Finishing is performed on both straight and shaped edges.

Repairs to wooden buildings are not complete without sealing old holes and cutting out new ones.

Actuator of different designs

This requires a drill, and to perform several tasks you will need a whole set.

Where each tool has its own dimensions in diameter and length. They have the peculiarity of changing proportionally. When one value increases or decreases, another indicator changes in the same direction. There are no thin and long elements; they will simply break under a slight load. For example, at 12 mm. diameter, the length will be a drill bit for a drill of 50 mm., There are also 60 mm. These devices are also different in appearance:

• spiral;
• screw;
• feathers;
• ring;
• countersinks;
• flexible.

Through space can be created, different in geometric shape:

• cylindrical;
• conical;
• stepped;
• square.

The mechanism for wood processing, unlike metal processing, has a conical end; it is used to mark the drilling location.

Recommendations for choosing metal products

Brings to your attention advice from experienced experts who know all the intricacies of this instrument. These include:

The material from which the part is made

It is best to choose products made from metal alloys. They are considered more durable and wear-resistant when working with a wooden base.

No marriage

Here it is important to evaluate the appearance of the metal part. There should not be any defects on its surface in the form of cracks or irregularities.

During the drilling process, these defects can spoil the result.

Price. Good drills have a fairly high price. High-quality raw materials were used for their production. Budget-priced models are usually intended for one-time use. During operation, they may become deformed or break.

After repeated use, they need to be re-treated at the bottom. Sharpening drills with your own hands is quite simple. For this you will need a file. Movements must be made in the direction of the factory thread.

How to prepare a drill for milling

Electric drill

It may not be possible to open a full-fledged carpentry business with an electric drill, but in a home workshop, various milling procedures are often simply necessary.

Reconstruction begins from the place where the electric motor will be mounted.

If you don’t have an old table, you can put it together from available materials - boards, plywood. Bars are suitable for support legs. A recess is made on the countertop for installing the device with guides. You will need to cut a semicircular groove with a saw and drill through the circles to attach the support sheet.

After building the table you will need:

• electrical appliance;
• small cutter for testing;
• cartridge;
• chipboard sheets.

The drill is secured with clamps to a chipboard stand. The cutter is installed on the shaft. The elevator will be the carriage of the power tool with the main body. The stand and the limiting platform are connected at a right angle. The knife should extend beyond the base.

Karnash brand tools

Today it is not difficult to choose and purchase core drills to solve any technological problem, since they are presented on the modern market with a wide variety of types and brands. These can be core drills for wood, as well as more durable and wear-resistant tools for concrete, cutters for making holes in metal products and structures.

Among specialists who often work with core drills, products manufactured under the Karnash brand are popular. The popularity of these core drills is facilitated not only by their exceptionally high quality, but also by the fact that they are available in a wide range, from which you can choose a tool to solve a specific task.

Karnash core drills

Thus, among the products manufactured under this brand, we can distinguish core drills of the following series:

• Gold-Line, made of high-speed steel HSS-XE, on the surface of which a wear-resistant coating is applied using Gold-Tech technology;
• Hard-Line, the cutting part of which is made of Swedish-made carbide inserts (the expanding spiral groove of core drills in this series simplifies the removal of chips from the processing zone);
• Rail-Line, the working part of which is also equipped with carbide inserts with multi-stage sharpening of cutting edges (with the help of tools in this series, railway rails are drilled);
• Blue-Line and Blue-Line Pro, used for drilling hardened railway rails, cast iron, aluminum and stainless steel.

Edge sharpening

The set of equipment is not thrown away after long use; if corrected, they retain their normal condition. This is how a shaped end mill is sharpened along the front cutting edge with a diamond stone. It is attached to the table and the blade is moved along it. The sharpener is moistened with soapy water. The pointed areas will gradually recover with minimal loss in diameter.

If there is a guide bearing, remove it first, then start sharpening. Before work, first clean the cutter with a solvent to remove any remaining wood resins. The sharpening stone is chosen of the correct shape according to the level of grain. It depends on the thickness of the layer being removed and the degree of surface grinding.

They sharpen each tooth in turn, maintaining symmetry with the same number of movements, pressures - in the same direction. For soft cutters, use ordinary sandpaper, abrasive paper, which is glued to a steel or wooden strip.

Grinder

If you have a sharpening machine, then manual work can be replaced with mechanical work. The tip is restored to its former state all around, material is used for it:

• white or normal electrocorundum;
• elbor;
• green silicon carbide.

The machine can sharpen even the most complex spiral tooth shapes using rotational and translational movements. The cutter, during its longitudinal movement towards the circle, makes synchronized turns along the axis. The position of the edge does not change in height, and contact with the abrasive is maintained along with the sharpening angle.

At the end of the procedure, a control inspection of the blade is made for chips and cracks. A special device is used to determine the deformation for runout and the absence of changes in the angles. A deviation of 1 degree is allowed. Good care and correct editing will extend the life of cutters and main power tools.

Summary

Article Name

Wood cutter

Description

Wood cutter for drill 35 mm, 50 mm, 100 mm. Wood end mill for drill. Do-it-yourself wood cutter from a drill.

Author

Sarychev Alexander Viktorovich - forensic construction and technical expert, candidate of technical sciences

Publisher Name

Wikipedia of construction tools

Publisher Logo

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Application at work

This attachment will turn your power tool into an efficient woodworking machine:

• cutting grooves of complex shape;
• grinding corners and edges;
• processing complex elements.

And this is not a complete list of possibilities that open up with a working attachment for a drill. A correctly selected part for a specific task will help you complete not only the rough work, but also the finishing touches.