Sharpen a circular saw for wood. How to sharpen a brazed saw blade? Tooth material and shape

  1. How to sharpen
  2. It is important to know
  3. Assembling a homemade sharpener

From time to time you need to sharpen the cutting element of the circular saw. Sharpening circular saw requires certain knowledge and special equipment. There are machines designed for these purposes.

Types

Machines for sharpening circular saws are a group of devices for restoring the sharpness of cutting elements. Depending on the functional features they are:

  • Automatic. The units are installed at large enterprises.
  • Semi-automatic, mechanical (tools for sharpening cutters by hand). They are characterized by low productivity and are mainly used in home workshops.

When sharpening chains for rip sawing, other devices are used that can sharpen each tooth using files.

All equipment that includes an electric drive is similar in principle of operation. Only the performance differs. Thus, low-power household samples can operate continuously for up to 20 minutes. Afterwards they must be turned off for the same time to cool down.

Professional tools can work up to 8 hours. They only need a few short breaks of 20-30 minutes. Some units have an abrasive wheel for sharpening and a sanding belt with a similar effect.

In most cases, saw tools can be sharpened on machines whose main element is a sharpening disc. Belt devices are more suitable for industrial use with large volumes of fine sanding.

Grinding machines are equipped with wheels that differ in:

  • thickness - 16–40 mm;
  • outer diameter - 12–250 mm;
  • mounting hole - 12,7,16, 20, 32 mm;
  • material of manufacture.

You need to pay attention to what the abrasive is made of. Special attention: the result of the work depends on the quality. In addition to conventional cutters, there are wheels that have reinforcing soldering - a plate made of hard alloys. The most common are corundum and diamond wheels. They do a good job of sharpening carbide-tipped blades designed for cutting particularly hard materials.

The installation circle must be purchased taking into account the characteristics of the circular saws. The abrasive belt is selected according to the size of the machines. The grain size, which affects the nature of the grinding, is also taken into account.

How to sharpen

The abrasive disc is cleaned of dirt and residues of removed material, and the angle of inclination is set. Sharpening begins from the front of the tooth. The maximum metal layer allowed for removal is up to 0.20 mm.

It is necessary to ensure correct feeding of the cutting element to the sharpening disc. The wheel to be sharpened must be in contact with the abrasive with its entire surface. During the work, you need to ensure that the blade does not overheat. You can avoid increasing the temperature of the material to critical levels by adjusting the rotation speed of the abrasive element and wetting it with a small amount of water before work.

Diamond-coated wheels that process pobedite cutting tools are usually cooled with a special liquid (coolant). The process can be considered complete after the appearance of a uniform burr over the entire surface of the blade edge. Final sanding is done by hand.

It must be remembered that the machine can only process a workpiece in one plane at a time.

It is important to know

The main wear of the saw occurs on the upper edge of the teeth. It comes into most contact with the material being processed. Due to constant contact with hard surfaces, the rounding of its central edge can reach 0.3 mm. This is a critical indicator. It is necessary to ensure that the central protrusion is rounded by no more than 0.2 mm, otherwise it will be difficult to sharpen the element well and will take a lot of time.

The degree of wear is usually determined by the condition of the teeth and the quality of the cut. Each cutting disc has a resource. In most cases this is 30-35 sharpenings.

It is impossible to allow the formation of nicks, chips, or other defects on the cutting edge during its processing using machines that violate the integrity of the metal.

Assembling a homemade sharpener

They resort to making a homemade sharpening machine in the case when there is no factory equipment at hand, and the cutting wheels periodically have to be sharpened. The device can be used to sharpen a dull circular saw blade.

For assembly you will need:

  • electric drive,
  • caliper,
  • tilt mechanism,
  • screw stops.

The circle must be fixed to the engine. The disk blade is installed on the support, while the screw stops ensure the movement of the cutter along the axis of the circle, creating the required angle of inclination. Correct fixation of the saw blade relative to the abrasive is the main requirement for sharpening. To ensure that the angles are maintained, you will need an adjustable stand mounted in the same plane as the circle on the frame of the device. When installing the disk on the stand, you need to ensure that the teeth are placed perpendicular to the plane of the machine.

When independently assembling a device for sharpening circular saws, it is recommended to use drawings and diagrams.

Sharpening can also be done with mechanical devices. But when using special units, the operating time is reduced; a sharpened cutter will have a sharper edge.

A circular (circular) saw is an indispensable tool that you cannot do without when carrying out repair work, construction, woodworking or harvesting firewood.

The quality and accuracy of the cuts and the service life of the saw directly depend on the quality of its sharpening.

To sharpen the saw you will need:

File, vice, block of wood, marker, some time and good mood :)

Your mood will improve even more when you feel the difference between working with a dull saw and a well-sharpened saw.

    1. Keeping the saw sharp is especially important for low-power circular saws. A dull disk increases the load on the electric motor, which, if overheated, can fail.
    2. signs of wear on the saw, which are a signal that it needs to be sharpened:
      - it is necessary to apply more force when sawing;
      - the edges of the cut burn, a burning smell and dark marks on the material from the saw teeth appear;
      - increased heating of the electric motor (smoke may appear).
  1. Before sharpening, the saw teeth must be set apart. The setting of the teeth is done either by a special “setting” with a limiter, or by a metal plate with slots.
  2. The circular saw is sharpened first from the back surface of the tooth, which during operation does not come into contact with the material being processed. Then the front surface, which runs into the material when sawing, is sharpened. You can sharpen the disc directly in the machine, or you can remove it for sharpening in a vice.
  3. When sharpening in a machine, make sure that the machine is de-energized and will not start accidentally. Secure the blade by placing thin pieces of wood on both sides and pressing them against the saw teeth.
  4. Mark with a marker (felt-tip pen) the tooth where you started sharpening. When sharpening the first tooth, remember the number of movements with the file and try to sharpen the remaining teeth with the same force and the same number of movements.
  5. If you decide to remove the disk from the machine, clamp it in a vice using wooden dies and follow the steps described in paragraphs 3-6. As you sharpen the teeth, rotate the disc in a vice.
  6. Once all the teeth have been sharpened, insert the disc into the machine, turn it on and cut a test block of wood. Loud noise, beating or uneven feeding of material indicates a difference in saw teeth in height. To check this, place a marker on the cutting edge, and then turn the blade a full turn in the direction opposite to the direction of rotation. Examine the disk. A mark will remain on each tooth, which allows you to identify teeth that differ from others in height. Use a file to carefully reduce the height of the protruding teeth.
  7. Of course, the best quality of sharpening is achieved on special sharpening machines, but they may not always be available to a craftsman at home.

Video:

Any cutting tool tends to become dull during use. This also applies to carbide saw blades, which must be sharpened regularly in order for wood to be sawed quickly and efficiently.

The easiest way to sharpen teeth on a circular saw is to use a regular file. But when working with your own hands, bringing the cutting tool into working condition, there are many difficulties that can only be dealt with good specialist with quite a lot of experience. It is much easier, faster and more efficient to use a homemade machine for sharpening circular saws or a sharpening machine for circular knives for this operation.

If you have a homemade electric sharpening machine for circular saws, regardless of whether it is a factory tool or a homemade one, you should know the basic principles of using such equipment. Especially when there is a need to sharpen the teeth of saw blades that have different geometries and sharpening angles.

1 Shapes of teeth on saw blades

There are several of them, and they appeared as a result of optimization impact of the cutting edge on the material being cut, which may have different properties.

The main tooth shapes are:

  • straight - used for longitudinal sawing, when high quality is not necessary;
  • oblique (beveled tooth) - has a variable right and left angle of inclination of the rear (sometimes front) plane. Used for cutting both longitudinally and transversely. The most common shape for circular saws. This configuration is convenient to use when cutting slabs with double-sided lamination, as it does not cause chipping at the edges of the cut;
  • trapezoidal - characterized by a long period of retention of the cutting edge in acute condition. Typically, on saw blades, teeth of this shape alternate with straight teeth, slightly rising above them. Trapezoidal teeth, in this case, do rough sawing, and straight teeth do finishing;
  • conical - this form of teeth is used for auxiliary operations. For example, a layer of laminate is cut to prevent the appearance of splinters during the main sawing.

The front edge of all teeth is flat, but in some types of circular saws it is concave.

This allows for high-quality finishing cross-cutting.

1.1 Sharpening angles

Sharpening the teeth of a circular saw is carried out taking into account the four main angles that are formed at the intersection of planes:

  • front corner;
  • rear corner;
  • bevel angles of the front and rear planes.

As an auxiliary the sharpening angle is also taken into account, which is determined by the size of the front and rear angles.

Sharpening angles depend on the purpose of the saw:

  • for longitudinal sawing, a rake angle of 15 to 20 degrees is suitable;
  • when cross-cutting - from 5 to 10 degrees;
  • at universal application, on average - 15 degrees.

It is important to take into account sharpening angles not only in the direction of the cut, but also in the hardness of the wood - the harder it is, the smaller the front and rear angles should be.

2 Equipment for sharpening saw blades

These are sharpening machines for circular saws, which structurally made in the following variations:

  • when sharpening, only the saw moves (the motor with the grinding wheel is stationary);
  • Both the sharpened saw and the motor with the wheel can move;
  • Only the motor with the grinding wheel attached to it moves ( saw blade remains motionless).

As standard example A sharpening machine can be a device that consists of two components - a motor with a grinding wheel mounted on its shaft, and a support on which the circular saw being sharpened is mounted.

To ensure angular sharpening, this device must have a system that allows you to change the angle of inclination of the blade (for teeth with a beveled front plane).

2.1 JMY8-70 machine

The JMY8-70 electric sharpening machine, which is made in China, has enough a large number of positive feedback. Some craftsmen take its structure as a basis when they assemble a homemade machine with their own hands for their own needs.

The JMY8-70 machine is designed for sharpening circular saws that made of hard high-speed alloys. The machine can process the front and rear planes of the teeth, as well as perform angular sharpening.

Main advantages:

  • has a diamond grinding wheel with a diameter of 125 mm;
  • equipped with an inclined saw holder, which allows for angular sharpening;
  • the body is made of cast steel used in the aviation industry;
  • installed on rubber gaskets, which significantly reduce the impact of vibration on the material being processed;
  • has a simple adjustment that even a non-specialist can handle.

The manufacturer completes the machine upon shipment detailed instructions, which describes in detail all possible functions devices and methods for their implementation.

Specifications:

  • the grinding wheel has dimensions - 125x10x8 mm;
  • the grinding wheel can be rotated at an angle of up to 20 degrees;
  • diameter of the saw being sharpened - from 70 to 800 mm;
  • grinding wheel rotation speed - 2850 rpm;
  • weight - 35 kg.

2.2 Homemade sharpening machine

A lot of people, when working with their own hands, use circular saws made of hard alloys not regularly, but from time to time. Therefore, buying factory equipment does not make economic sense. A homemade sharpening machine is an excellent solution that will allow you to avoid contacting third-party organizations.

The main argument is that when sharpening a circular saw with your own hands on a regular sharpening wheel, it is very difficult to maintain the required sharpening angles. Therefore, a device is needed that will allow you to fix the saw blade in a specific position in relation to the grinding wheel.

A homemade machine on which you can sharpen circular saws with your own hands may consist of the following components and parts:

  • a fixed electric motor with the possibility of attaching a grinding disc to its shaft;
  • table-stand, the surface of which is located at the same height as the axis of rotation of the grinding wheel;
  • ensuring the tilt of the stand using hinges on one side and rotating (changing height) screws on the other. This will allow you to perform angular sharpening along the front and rear planes;
  • clamps that allow you to secure the saw blade. To do this, a groove is made on the surface of the stand for a mandrel on which the saw is mounted. Moving the mandrel, together with the disk, along the groove will allow you to maintain the required sharpening angle of the teeth;
  • a device for moving an electric motor or a stand for angular sharpening of circular saws with different diameters;
  • the presence of stops for reliable fixation of the tool during work.

2.3 Sharpening circular saws

The sequence of operations when sharpening the front plane of a carbide circular saw tooth:

  • the saw is placed on the mandrel and secured with a conical sleeve using a nut;
  • is set clearly horizontally using a pendulum goniometer, while the bevel angle of the front plane turns out to be zero;
  • By moving the mandrel horizontally with the disk installed, the specified front sharpening angle is set. Simply put, the disk moves in such a way that the front plane of its tooth fits tightly to the surface of the grinding wheel;
  • Using a marker, a mark is made to indicate which tooth the sharpening began with;
  • when the electric motor is turned on, several movements of the saw are made back and forth, pressing the surface to be sharpened against the working surface of the grinding wheel;
  • the thickness of metal removal is regulated by the clamping force and the number of translational movements;
  • after the first tooth is sharpened, the saw is removed from contact with the grinding wheel and rotates around its axis by one tooth, which will be the next one to be sharpened;
  • the operation is repeated according to the number of teeth on the saw blade.

A circular saw is an indispensable tool for frequent work with wood and similar materials. This tool is especially important when arranging country houses.

But, like any piercing and cutting tool, the saw tends to become dull. Therefore, saw blades require periodic sharpening. We will talk about how to sharpen a circular saw blade in this article.

A dull blade has the greatest impact on the saw motor, as the load increases significantly. The most noticeable signs are noticeable heating of the motor casing and the appearance dark spots on a sawn tree. These are the consequences of significant heating of the saw teeth. Accordingly, a burning smell appears.

The amount of effort that needs to be applied when working with the tool also increases. The bars do not move so smoothly, but with jumps. If you use an unsharpened tool for a long time, smoke may appear from the motor.

Types of disks

Discs vary in tooth shape:

  1. Straight tooth. Often used in circular saws for rip cuts, and quality is not so important.
  2. Oblique tooth with left and right angle of inclination of the rear plane. Incisors with different angles alternate, therefore they are called alternately beveled. This option is the most common. The value of the inclination depends on the material that will have to be cut. As the angle increases, the cutting force decreases, which helps eliminate chipping. However, this reduces the strength of the tooth. The front plane can also have an inclination.
  3. Conical tooth. Such discs are used when making cuts in the lower layer of the laminate, thereby preventing the appearance of chips during finishing sawing. Often the front edge is flat, but in some cases the teeth have a concave edge.
  4. Trapezoidal teeth. They have good resistance to dull edges. As a rule, they are used on discs in conjunction with regular teeth without bevels. In this combination, trapezoidal ones perform rough cutting, and straight ones perform finishing cuts.

Sharpening angles

The teeth have 4 characteristic sharpening angles:

  1. front;
  2. rear;
  3. bevel angle of the front planes;
  4. bevel angle of the rear planes.

There is also a sharpening angle, but it depends on the value of the front and rear angles.

The purpose of the saw directly affects the angle values. Depending on the material being cut and the direction in which the cutting will take place with a circular saw, the angles change.

For cross cutting, the rake angle is set in the range from 5 to 10 degrees. For longitudinal - from 15 to 25 degrees. For universal saws, the front angles are set to an average value of 15 degrees.

Also not small role plays a role in the hardness of the material to be sawed. As the hardness of the material increases, the angle values ​​decrease.

The rake angle can also have a negative value. Saws of this type are used for cutting metals and plastics.

Sharpening teeth

Sharpening circular saw blades can be done in two main ways: using a specialized machine, or using improvised tools.

How to sharpen a circular saw blade using a machine?

The top edge of the tooth is most susceptible to wear. During operation, its rounding is observed. The highest wear rate is at the leading edge.

It is better to sharpen discs made of hard alloys on two planes. It is allowed to sharpen along one plane (usually along the front), but then the number of sharpenings is reduced by approximately 2 times.

Before starting the process, it is necessary to clean the disk from dirt and also measure the corners.

It is important not to let abrasive wheels get too hot, especially diamond ones.

As the temperature increases, the hardness of the materials from which the wheels are made decreases. At a temperature of 1250-1350 degrees, the hardness of abrasives decreases almost 5 times.

But using water as cooling can provoke corrosive processes. To avoid this, add soap or electrolytes to promote the formation of a protective film.

For regular sanding use soap or soda solution, for the final one - low-concentrated emulsions.

To increase the efficiency of sharpening, as well as reduce wear, it is necessary to use the largest grit that provides the required surface cleanliness.

For example, for diamond wheels, during rough turning, a sharpener with a grain size of 160/125 is used, for the main one - 50/40. Materials with a smaller grain size serve to get rid of nicks.

It is important to achieve maximum smoothness of the teeth, since if there are jagged edges, the irregularities crumble during operation, and this will cause the saw to become dull much faster.

Sharpening a saw with straight teeth. The disk is installed in special frame on the machine, and is clamped into it with a conical bushing and nut. The position is then adjusted so that it is horizontal, thereby ensuring a zero bevel angle.

If the installation does not have a mechanism for tilting the angular scale, then this is done with a pendulum inclinometer. It is also important to check the horizontalness of the installation itself.

As a result, the saw is fixed so that the front plane of the tooth is located close to the sharpening surface of the circle. The first tooth to be sharpened is marked in any way. Next, the engine starts and sharpening is performed. Make the required number of movements back and forth. The layer of metal that will be removed during the process depends on the number of movements performed and the force of pressing. This continues until the sharpening process has gone through the entire disc.

Sharpening a tooth with a bevel. The difference from the process of turning the previous type of teeth is that the disk is fixed not in a horizontal position, but at an angle. Its value is measured with a pendulum inclinometer. First, a positive angle is set and every second tooth is sharpened, according to the same principle as regular teeth. Next, the positive angle is changed to negative, and sharpened in the same way, through one tooth.

Sharpening on the back plane. Such sharpening is carried out on machines with the ability to fix the saw so that the rear plane is in the same plane as the surface of the sharpener.

How to sharpen a circular saw blade on your own?

Not for all people buying a special machine is a rational decision. And if you hold the disc suspended in your hands, it is difficult to maintain the required sharpening angles. To do this, a device is made that allows the disk to be positioned in the required position relative to the sharpener.

The best solution is a stand whose surface is located at the same level as the axis of the grinding wheel. You can also attach one of the sides to a hinge, thereby achieving its mobility, and support the other with several bolts that can be adjusted. This will allow you to set the blade at any angle to sharpen beveled teeth.

Another important detail is to sharpen all teeth with the same angles. To do this, you need to secure the center of the disk in the required position in relation to the sharpener. One way is to make a groove on the surface of the stand for a mandrel on which the saw will be mounted.

Useful video

The video explains how to sharpen a circular saw blade on your own.

The use of disc elements has become widespread in many areas of industry, so a machine for sharpening circular saws has become widespread. The main requirement for such a tool is high quality cutting of materials. Sharpening is not as simple a task as it might seem at first glance. In this case, you cannot do without special equipment. The following indicators influence how complex the operation will be:

What material is the element made of?

Saw diameter size;

Tooth angle and shape.

Machine

A sharpening machine is not just one device. This can be called a large group of equipment and tools for special purposes.

According to the production method, they are divided into two groups:

Automatic. The sharpening process is completely mechanized and there is no need for human participation. Such devices are used for production purposes.

Manual. These can be any devices and tools for sharpening by hand. The productivity of such equipment is much lower than automatic machines. This type has found application in handicraft workshops for domestic needs.

Equipment of this kind is available for sale in a wide range; devices may differ in function, power and price. A manual machine for sharpening circular saws, the price of which will be much lower (about 20 thousand rubles), can be made independently. The equipment consists of dense and hard alloy plates that serve as cutters.

Plates for them are made from alloys of various compositions.

They have different tooth configurations. The strength will depend on what alloy is used. The grain size of the alloy plays an important role. It should be smaller to give strength and hardness to the product. Typically, such hard alloys are obtained from cemented cobalt. Therefore, it is so important that the equipment is a machine for sharpening carbide circular saws.

Differences in insert teeth

The tooth of hard alloys has four main planes for work: front, back and lateral (auxiliary). When the planes intersect with each other, cutting edges are formed: the main one and a pair of auxiliary ones.

The shape of the teeth is as follows:

Straight. The use of this form will be justified when required longitudinal cut fast in time and not obligatory in quality.

Oblique or beveled. Tilt angle back shape in this case it can be right or left, they alternate with each other. This configuration is the most common. Different sized sharpening points are used to work with different materials in any direction.

By changing the size of the bevel angle upward, you can enhance cutting and reduce the likelihood of chipping, but this will lead to a decrease in the strength and durability of the tooth itself. The front part of the element plane can also be tilted.

Trapezoidal. This tooth dulls its edges more slowly than a beveled tooth. Alternate it with the straight one. In this case, the rough cut was a longer trapezoidal cut, and the finishing cut was a short straight cut.

Conical. This form of teeth performs a rough cut on the lower edge of the boards, while protecting the upper edge from chipping. Basically, the front edge of such an element is flat. But if you make it concave, then it is possible to use this device for cross cutting in a finishing version.

Sharpening angles

The fundamental angles are those determined by the shape of the teeth. These are front and rear, as well as bevel along the front and rear planes.

The size of the angle is also determined by the hardness of the cutting material.

At high hardness it is made smaller. The front cutting angle is possible in a negative design. This is used in non-ferrous metals and plastics.

Prices

You can buy a machine for sharpening carbide circular saws at a cost of 15,000 rubles. You can also shell out for more expensive devices. For example, PP-480Z will cost its owner 280,000 rubles. Prices vary and depend on the purpose of the device, its functions, power and performance. For a small workshop or home use You can purchase a machine for sharpening circular saws JMY8-70. Its cost is within 18,000 rubles.

Sharpening rules

The main wear of saw teeth occurs on the upper edge, which is directly involved in cutting. Its rounding can be 0.3 mm. The central face changes earlier than the others.

The wear of the saw should not be allowed to be significant. The edge can be rounded no higher than 0.2 mm. It is more difficult to sharpen a saw that is duller than this value. This will take longer than for a tool with normal wear. The degree of wear is determined either by the type of cut or by the teeth.

We must not forget about the maximum possible number of sharpenings produced. This value is in the range of 30-35 times. To achieve this result, both surfaces are treated at once.

The machine for sharpening circular saws allows you to perform work in only one plane. And then it will be reduced by about 2 times.

Before starting work, you should clean the working disk from dirt, and also measure the angles of inclination. Preparation for sharpening is carried out from the front of the tooth. The layer of metal that can be removed is 0.20 mm.

If abrasive materials are used when sharpening, they must be cooled with liquid. special staff(coolant). For best quality and reduce specific gravity, it is better to choose a high-grit wheel.

Jagged edges and irregularities should not be allowed, even if this is a homemade machine for sharpening circular saws. They can lead to untimely exit from work and crumbling of the metal.

artisanal

Sharpening it yourself won’t be too difficult. Especially if you have the necessary equipment. And if not, then you can make it yourself. You can make a machine for sharpening circular saws, the price of which will only please you, from simple parts. To do this you will need the following basic elements:

Engine;

Caliper;

Tilt mechanism;

Stop screws.

The circle is fixed on the engine, the disc blade is on the caliper, the screws will ensure the movement of the workpiece along the axis of the circle, which will ensure the desired angle.

The main task for such an element as a machine for sharpening circular saws is to fix them in the required position relative to the circle. This is necessary to accurately maintain the angles; this can be provided by a stand mounted on the machine frame in the same plane as the circle.

When placing the disk on a stand, the teeth must be perpendicular to the plane of the sawing machine.

The stand does not have to be made stationary; if necessary, you can make it floating; to do this, screw a hinge on one side and firmly attach the second part to the frame with bolts. With a structure of this type, you can easily rotate the device’s disk to the desired angle and carry out work in a given plane.

Difficulties at work

When using circular saws to sharpen, you may encounter difficulties associated with the formation of incorrect angles. To eliminate such a defect, you need to fix the center of the saw in the required position relative to the circle. A groove made on a stand can solve this problem. This will help level the saw. There are also simpler solution- make stops in the working surface that can fix the device in the correct position.

Exploitation

Before the beginning self-made of this unit, you need to think over the drawings of the machine for sharpening circular saws. You can calculate them yourself, or you can turn to a professional. In any case, in order to understand all the intricacies of the future device, you cannot do without a preliminary paper version. If you have the necessary knowledge, you can cope without turning to a specialist.

After the implementation of the future machine on paper, it will become clear what tools and materials will be needed in the process, what is already available and what needs to be purchased.

A machine for sharpening circular saws, created with your own hands, has a big advantage in terms of price over a factory unit. It also does not require any special skills to operate.

Sharpening without a machine

You can sharpen a saw at home without the help of a machine. But you shouldn’t hold it manually while sharpening it. For correct operation, hand effort will not be enough, and the eye will not be able to adjust the desired angle. To simplify the task, you can use some kind of fixation device; for this purpose, a regular flat delivery will be useful. The axis of the sharpening disk must coincide with the surface of the stand. And the circle, in turn, should be placed perpendicular to the saw. If it is necessary to make corners, the structure is made movable using hinges. But here the difficulty arises in maintaining the same angle of the front and rear sharpening. Rigid fixation of the saw wheel in relation to the abrasive disc will help to avoid this. This can be done by using an arbor groove or attaching stops in the stand, which will allow you to secure the corner.

Conclusion

Like any tool, a circular saw needs proper operation and care. Compliance with technology will increase the service life of the product.

So, we found out how to make a machine for sharpening carbide circular saws. To do this, you will need very few materials, as well as some skills and the desire to make a useful thing with your own hands.

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