How to work with a hand-held circular saw

Necessary materials

To make such a tire, you will need three pieces of plywood 10 mm thick. Their length should be the same and usually equal to the length of the workbench on which the work will be done. One of the segments should be 25-35 cm wide (it will serve as the base), the width of the other two will be determined during tire manufacture. Also prepare wood screws with a size of 16 mm.

Dimensional drawing:

Plywood

This is one of the simplest all-round DIY circular saws and is the most common guide for home workshops. Let’s consider in detail the process of its manufacture and the principle of operation.

Aluminum profile rail

Such a bus differs from a simple plywood bus in that a U-shaped aluminum profile is installed in the guide gap. Its advantage is that the rigidity of aluminum slightly increases the cutting accuracy.

For better glide of the saw on the rail, instead of a thick plywood, you can attach a pair of fluoroplastic or other material with a low friction coefficient of a suitable height to the guide groove of the sole.

Manufacturing instruction: circular saw guide

Anyone who has worked with a hand-held circular saw at least once knows how difficult it is to make a clear and even cut with it. Many people solve this problem with the help of simple devices, such as a strip of plywood or plastic, which is fixed to the surface with clamps. However, it is much more convenient to use a special guide rail for this purpose.

• What it is?
• Plywood
• Necessary materials
• Manufacturing instruction
• How to use a plywood tire?
• Other types
• Aluminum profile rail
• Building rule ruler
• Rail miter box
• Outrigger carriage on bearings
• Conclusion

Rail miter box

This device is more often used for cross-cutting (trimming) material.

It usually consists of two parallel metal corners, the ends of which are rigidly fixed to a plywood or metal base.

The saw platform moves freely along the corners, like on rails.

The corners are fastened with bolts or studs, which are also used to adjust the height of the “rails” relative to the base. The height should be such that the cut material passes freely under the corners.

To make the movement of the saw smoother, the corners on the inside can be glued with a material with a high slip coefficient. For an even smoother ride, the saw foot can be mounted on a platform with metal wheels.

Building rule ruler

There are long aluminum rules that are used by finishers to line the walls. For making a guide ruler with your own hands, rules are suitable, the design of which provides a trough for free movement of the handles.

The main advantage of such a ruler is the absence of elements protruding above the surface of the workbench. To do this, you need to take two collapsible clamps and slightly modernize them.

The handles are removed from the rule, and their upper parts are removed from the clamps, which are replaced with polypropylene or fluoroplastic inserts. The profile of these inserts must be T-shaped so that they can be installed with the wide part in the groove of the rule and held there.

The result is a ruler that attaches to the workbench only with the bottom. This will allow you to move the saw freely in the work area without fear of snagging.

However, such a tool cannot be called a full-fledged bus. This is exactly the ruler that needs to be adjusted before each cut.

Outrigger carriage on bearings

The outrigger circular saw is more like a stationary panel saw. This design is highly stable and therefore provides high cutting accuracy.

The outrigger carriage is made of a metal I-beam, which is firmly attached to the workbench with its bottom plane. The carriage itself moves along the upper plane. a platform, the lower edges of which are bent inside the I-beam and are equipped with bearings that allow it to slide freely. The same bearings, tightly pressed against the I-beam axis, exclude the side play of the carriage.

Parallel to the carriage, the saw sole is attached to the outrigger guide. The guide can be made from two parallel corners or pipes. thus, by moving the saw foot, you can adjust the size of the material cut.

This design is good in that the saw support platform is adjacent to the workpiece, which means that the cutting depth does not decrease.

HOW TO USE THE CIRCULAR SAW CORRECTLY

Thoughts about purchasing a circular saw arise when a large amount of work is required to cut a bar or planks along the material. Of course, you can use a hacksaw or jigsaw to loosen the boards if you want. The masters will masterfully cope! However, if cutting with straight lines is required, then a circular saw is required for such work. This power tool is used for cutting wood as well as plastic and soft metal.

It would seem that the question of how to use a circular saw is quite simple and the answer is clear. However, not all so simple.

A little about the available teeth

When choosing a saw for the job, the characteristics of the teeth must be taken into account. This is necessary because a specific material requires its own type.

Circular saw blades with standard teeth are used for soft woods and plywood.

For hard rock or chipboard, special carbide teeth are suitable. In addition to the special shape and more, they have victorious soldering.

For chopping work, such as ripping boards, a disc with a small (up to 24) number of teeth is suitable. The smaller there are, the larger their size. Accordingly, the blade will cut faster, but the cut will be rough.

For fine cutting, discs with teeth up to 36-48 units are suitable. Working with hardwood material or planks with nails will require 54 trapezoidal discs.

The inclination of the teeth can be positive, such that it cuts wood. A disc with a negative tilt is used for clean cutting of aluminum and plastic.

About the quality and result of work

Everyone loves that the work was done conscientiously. How to work with a circular saw correctly and achieve a high-quality result?

Pay attention to the longitudinal and lateral balance of the saw. The cutting efficiency is directly dependent on the correct balancing of the machine. Any misalignment causes inconvenience, stress and severe fatigue during work.

The quality of the disc sharpening also greatly affects the process of work. This is especially true for low-power models. You can sharpen a disc in many places, the main thing is to do it before starting work.

The need for sharpening is determined at a number of points:

• during work, it is required to apply more forces than usual (this is not drinking water);
• the edges of the cut begin to burn;
• frequent engine overheating.

If you let this moment take its course, then the breakdown of the tool is not far off. This will be eloquently indicated by the smoke coming from the saw and the smell of molten insulation.

Benefits of electric circular saws

There are models of saws that, during operation, control the load of the tool, protecting it from overheating, and are able to control the speed of the mechanism.

Most circular saws are equipped with an overload indicator and their motor brushes. Replacing discs is very safe due to the built-in quick braking system and blocking the engine of the device.

A number of electronic saws allow the sawing to measure the number of revolutions while the blade is moving. This function allows you to work not only with wood, but also with plastics and some soft metals.

advanced models are equipped with an electronic soft start system. Thanks to her, such tools quickly gain momentum at an even speed.

It is very difficult to get injured in this case, since such models have a protective cover from the saw teeth. He smoothly, without twitching, moves away from the disc during the start of work. A number of some tools of this kind are equipped with a pendulum cover and an infeed roller.

Many models used for both professional and household work are equipped with special outlets for connecting a vacuum cleaner. Despite the decrease in maneuverability, such a tool lasts longer, since the number of negative factors is significantly reduced.

What you need to know about the circular saw?

Circulars are simple. They consist of a base plate and a saw itself. The base plate is constructed from aluminum alloy or stamped steel plate. There are three types of circular saws: stationary, hand-held and combined.

Before starting work, the maximum cutting depth should be determined. This moment is the main criterion when choosing a hand saw. It makes sense to ask for what purposes a tool is needed: for professional or for household needs?

Also in this case, the size of the tool matters. Generally, a medium-sized circular saw is preferred for its agility and ease of use. For a significant amount of work associated with clapboard and thin boards during the construction of a house, a stationary large-sized circular saw will be required. Smallest tool suitable for thin rods.

A single-phase circular saw with a power of 220 W can easily cope with summer cottage and household work.

For large volumes, three-phase instruments (380 W) will be required. According to safety rules, they must be grounded.

Types of circular saws

For domestic needs, manual options are quite suitable, capable of transverse, longitudinal and oblique cuts. They are distinguished by their maneuverability, lightness and relatively low price.

A number of models allow you to cut not only from the end, but also anywhere thanks to the special plunge function. Due to the ability to tilt relative to the slab, such models saw the material at different angles.

The base plate of such a tool is made by a stamped method (suitable for domestic purposes) or cast (for a professional tool).

For large volumes of work, you will need a stationary circular saw with a box-type bed. They have been used before. Modern models are made very compact, which allows them to be placed on work surfaces, for example, workbenches.

For professionals, more massive tools are needed, which are placed directly on the floor of the room. They are able to influence the cutting depth thanks to the movable work table. The disc remains stationary during operation. Thanks to this, the possibilities of the circular saw are greatly expanded.

If the work is often carried out with variable load, then combined options are suitable. They differ from manual ones in that there are special mounts in their case, which make it possible to work stationary on any horizontal surface. In this case, the saw is fixed with the disk up.

Features of the work itself

It would seem that it is so easy to work with a hand-held circular saw, but you need to acquire skill and be careful.

• Sawing depth. When working with a circular saw, set the cutting depth equal to the thickness of the board. For the groove, it should be made slightly smaller. In addition to safety considerations, this way the board can be cut on a workbench without being damaged.
• Lower protection casing. When working with a saw blade, it should be borne in mind that the cover will open itself if nothing interferes with it. Therefore, if the board is placed on a workbench, then opening the casing “automatically” will not work, or it will work, but with injury and damage to the material. The best option in this case is to manually swing the protective cover to the side. Then prepare for safe use by holding the saw with the tip of the guard retainer and with your left hand. Be sure to think about how the saw and the material will work when working.
• Work at the workbench. In this case, the board is placed on a workbench. Further, according to the mark, the front end of the saw base plate is aligned and tightly pressed against the material. Before turning on, its back should be slightly raised so as not to touch. After that, the saw turns on, the speed is gained, and the board is sawn.

The best option would be to slightly push the edge of the board over the edge of the workbench.

Hand saws have a “riving knife”. It is needed in order to prevent the disc from being clamped. It also prevents the disc from “crashing” into the board during the return stroke.

Circular saws have a function such as a guide or rip fence. It allows you to cut exactly, strictly according to the markings.

Fixation. When working with a hand saw, any workpiece must be secured. Work becomes meaningless and even dangerous if it moves with the saw or moves to the side. Specially installed stops on the workbench will help in this matter, preventing the board from sliding to the side and forward.

Before sawing, you should mentally carry out the process and make sure that everything will happen smoothly, without interference.

Wiring. Handle power tools with care. Do not overheat the motor. Rest the saw.

After completing the cut, raise the saw up. In this case, the disc must be covered with a casing and be in the “away from you” position. The instrument should be laid down after checking for a complete stop of the disc and its cover. It is advisable to consolidate these simple skills to the level of a reflex.

And finally: you should not buy Chinese products and self-sharpening saws. Choose the proven and well-known domestic and foreign brands of circular saws with excellent quality!

Stationary models

The use of circular machines has its own operational features. To cut wood you need:

• Set the switch on the equipment to the off position. Only then can the cable be connected to the electrical network.
• Raising the handle, adjust and fix the cutting height of the disc according to the size of the material prepared for cutting.
• Check the position of the guide bar and saw blade. Their arrangement must be parallel to each other.
• Start the circular saw and make a longitudinal cut of the wood material. Sawing one board should be done in a single approach.

Using a stationary circular saw

After processing all the material, turn off the switch on the equipment, which stops the rotation of the blade, and disconnect the tool from the mains.

How to work with a circular saw?

A circular saw is a special equipment designed for even cutting of boards or wooden beams. The use of the device requires some knowledge and skills. To understand how to use a circular saw, you should familiarize yourself with its principle of operation and operational capabilities.

Hand circular saw

These electric saws are designed for precise, straight cutting of thin wood materials. The handheld circular device is small in size and is most often used for home use.

Small-sized equipment for sawing wood is necessary for the interior design of houses. Often, hand-held circular saws are used during renovations to cut laminate or wall decoration material.

Device and principle of operation

The design of the circular saw is pretty simple. The device can be manual, or stationary type, combined models are also found.

Regardless of the type, the equipment consists of a saw and a base plate. The last element is made from durable steel sheets or aluminum alloys. The main purpose of the circular saw is an accurate and high-quality rip sawing of wood.

A circular saw

Cutting boards and bars is carried out by rotating discs, which have special covers that protect against injury during the working process. The cutting part is triggered by a trigger. Circular equipment allows you to process large volumes of wood.

Nuances of additional functions

Modern models of circular saws are safe equipment with high technical parameters. Many devices are equipped with additional features that make your workflow much easier:

• Slip clutch. Such a device avoids injury when the disc is jammed. The clutch can significantly reduce the shock when the rotating mechanism stops.
• Smooth start. This feature allows the disc to pick up speed without jerking. Soft start protects the mechanism from jolts, which has a positive effect on the operating life of the engine.
• Overload protection. When the engine reaches critical indicators, the mechanism is automatically turned off.
• Support for the required disk rotation speed. Power is automatically added under load when cutting dense materials. This function protects against a decrease in the disc speed.
• Accelerated braking. The disc stops abruptly when the shutdown button is pressed.
• Lock start buttons. This function prevents the instrument from turning on if the switch is accidentally pressed. It is usually installed by simultaneously pressing two keys.

Hand models

The circular hand saw is an efficient and safe tool. But still, the use of such equipment requires compliance with some operational rules:

• Electrical connection. When using the saw in areas remote from the mains, an extension cord is often used. It must fully match the power of the circular instrument. Before connecting it, check the integrity of the cable insulation. When connecting the saw to the mains, make sure that the switch on the device is off.
• Fastening material. Wood to be cut should be well fixed on a flat surface. For this, the material is placed on a workbench and fixed until it is completely stable.
• Setting the cutting depth. The required indicator is determined using a special scale on the instrument. When cutting a bar, the disc should not protrude beyond the material, otherwise the workbench may deteriorate. Therefore, it is recommended to fix the cutting depth slightly less than the required value.
• After setting all the necessary parameters, the cutting mechanism should be set in motion. Cutting should only be started when the blade is rotating. The movement of the saw along the material must be smooth and even.

At the end of the working process, the hand-held circular tool must be disconnected from the mains.

Classification of types and sizes

Circular saws are divided into two classes. household and professional. The equipment differs in power, size and diameter of the saw blade:

• Household models are small equipment weighing 4 to 5 kilograms, which is usually used for sawing wood at home. Equipment power. no more than 1800 watts. The size of the disc in such saws is 160. 200 millimeters.
• Professional circular saws are designed for processing large amounts of wood. They are capable of sawing beams up to 85 millimeters thick. The weight of such equipment exceeds 8 kilograms, and the disc diameter is 250 millimeters. Professional saws have a higher power. over 1800 watts.

Household circular saw model

Several types of circular saws are produced:

• Standard. The model is designed for cutting wooden blocks with a density of up to 85 millimeters.
• Mini saw. A small circular device weighing up to 2 kilograms and a power of up to 800 watts. Used for cutting thin wood.
• Submersible. Equipment is used to cut holes inside the tree. The design of such a saw consists of a mechanism that contributes to the vertical immersion of the blade.
• Diamond. This type of equipment is designed for cutting hard materials. stone, ceramics or tiles. The working mechanism of the device consists of a diamond disc, which will allow cutting to a depth of 55 millimeters.
• Rechargeable. Such a circular tool has low power and rather compact dimensions. The device is powered by a rechargeable battery and is often used in the construction of wooden houses.

Circular saws are divided into four types, depending on the immersion depth of the blade:

• professional. from 65 to 140 millimeters;
• large. from 70 millimeters;
• medium. 55 millimeters;
• small. from 40 to 46 millimeters.

The number of teeth on the disc is of no small importance for the quality of the cut. The fewer there are, the lower the performance of the circular equipment. For large-scale wood processing, special carbide-tipped cutting tools are used.

Circular machine

Circular machine

Circular machines are used mainly in production for industrial purposes. The cost of such a device is quite high. Some small models of circular equipment also have the function of stationary use. They are successfully used in home workshops.

Pre-finishing

Make two cuts instead of one. The first shallow pass will clear the wood fibers located on the surface, and when the final cut is made, they will not be pulled up.

Mafell Erika 85 Ec

The Erika is lightweight and highly mobile. The design provides special handles for easy carrying, as well as folding aluminum legs with elastic attachments that do not slip and do not spoil the floor. These legs allow you to quickly bring the machine into working position.

It is equipped with a powerful 2400W CUprex motor with high torque. Electronics provides the main start of the device, adjusts the speed of the saw blade and maintains it under load. Branded saw blades are used for cutting a wide variety of materials: wood, MDF and chipboard, aluminum profiles and composite materials.

A device is provided for expanding the table with the possibility of installing a manual router. Noteworthy is the design of the sawdust removal system, which significantly more effectively reduces dust content in the air.

A circular saw. How to cut it

The main stages of working with the tool:

• Set the minimum depth of cut by adjusting the blade downward.
• Fit the guide to the size of the part by measuring the length from the edge of the blade to the edge of the foot. Mark up the material.
• Make the initial cut 3-5 mm.
• Continue sawing without stopping all the way through the blade.
• Use duct tape at the cut to avoid chipping.

How to use a circular saw

How to work with the tool correctly:

• When working, do not use clamps, vices, or other methods of rigidly securing the workpiece. It is unacceptable to hold it with your hands or body.
• Do not overload the tool by doing work that is not intended for it.
• If the on / off key is broken, do not use the tool.
• When changing accessories, making adjustments and other work, the tool must be disconnected from the power supply.
• Storage of the tool should be done in places that are hard to reach for children and pets.
• Remember to periodically service your tool.

What is a circular saw for?

It is designed to cut softwood and hardwood boards with a moisture content of no more than 50% and a thickness of no more than 64 mm. It is allowed to cut plywood, aerated concrete, chipboard, asbestos-cement and cement-particle boards.

Prorab 5221

The Prorab 5221 hand-held circular saw belongs to the middle class due to its technical characteristics.

• engine power. 16 kW;
• blade diameter. 19 cm;
• rotation frequency. up to 5 thousand rpm;
• cutting depth. up to 63 mm;
• bevel cuts. up to 45 °.

The required rigidity is provided by a stamped base made of aluminum. A metal housing covers the saw blade. The cutting line is indicated by a laser marker, which ensures accurate cutting and is a special feature of the machine. The saw is powered by the electrical network. The device is equipped with a parallel stop. On average, such a model can be purchased for 3 thousand rubles.

What can be done with a circular saw

The principle of operation of this unit is based on the rotation of the cutting disc by an electric motor. The saw design is presented in two versions: manual or stationary. An important difference between these two versions is that the force from the engine to the disk in the stationary model is transmitted through the belt, while in the manual model the disk itself is fixed on the shaft. The saw can cut wood both along the fibers and across them, cut out a quarter. The tool can be used to saw off soft metal, plastic, if you use special discs.

Circular saw safety

Circular saws have a relatively high risk of injury, therefore safety precautions must be followed when working with them.

Setting up the circular saw before work

Before you start sawing, you need to install the blade and make sure it is firmly held in place. The cover should open and return to its original position without any resistance. It is also worth checking to see if the riving knife is properly positioned. Then run the saw in idle mode for 10 seconds to make sure it is working properly.

To set up the circular saw, you need to adjust the required position of the guide pin and cutting blade using a vernier caliper. When checking the position of the teeth in front and behind the disc, the difference should not be more than 0.05 mm. You also need to install the riving knife and blade so that they are on the same line. For their precise adjustment, special washers are used. The fixing bolts must be tightened well to keep the tool and table less vibrating.

What can be done with a hand-held circular saw

Manual circulars are suitable for a whole list of jobs:

• facing several wooden blanks at once, which lie in the same plane;
• trimming wide boards, for which a pendulum saw cannot be used (you will need a parallel stop);
• trimming boards when laying floors;
• facing workpieces at an angle (you can use a guide or do without it);
• longitudinal cutting of workpieces at an angle;
• sampling a quarter in a board or bar;
• cutting sheet materials using a guide;
• cut of organic glass and plastic;
• using the hand saw as a stationary saw by mounting it to the table.

How to cut a board straight with a circular saw

Unlike a stationary pendulum saw, it is more difficult to make a straight cut with a circular saw. This will not be a problem if the board or timber is narrow, but to cut a wide workpiece or when cutting longitudinally, you need to know how to make the cut as accurate as possible. To do this, you need to adhere to the following sequence of actions:

• There should be nothing under the piece of material that you will be sawing. The circular saw blade should not cut anything else. For example, never place your board on a concrete floor. use trestles or a saw table instead.
• Mark the line along which the saw blade should go. Use a tape measure, ruler or square for this.
• Adjust the cutting depth. The blade should barely protrude beyond the workpiece. For example, if the thickness of the workpiece is 40 mm, the cutting depth should be 45-50 mm.
• Check the condition of the guard. It should rise gently when the saw is lowered onto the workpiece, and immediately close the working part when it is raised.
• When starting to cut, look at the front right edge of the blade and align it with the mark on the material.
• Look at the right guide of the circular saw for right angle cuts, and the left guide for 45 degree cuts.
• Start cutting the material. Watch the guide at all times to make an even cut.
• Keep the saw base flat on the material at all times.
• Push the saw hard enough to cut, but don’t push too hard to overload the engine. The hardest woods should be cut with minimal effort.
• After finishing cutting, make sure that the guard is back in the closed position.

Correct operation of the circular saw

The hand-held circular saw is one of the most important tools in the woodworking industry. It significantly increases the speed of working with wood or plastic, sheet material, planks and timber. It is most commonly used for cross-cutting, but it can also be used for sawing along the grain of the wood. In this article, we will tell you in detail about the range of use of circular hand saws, setting them up before work, work techniques and safety rules.

Preparing the workplace for work

It is necessary to remove all unnecessary items from the desktop. There should be no tools, keys or consumables. In addition, you need to provide a free approach to the table. The floor in the work area must be dry to avoid accidental slipping. The machine must be grounded.

There are also requirements for the operator’s work clothes. Clothes need to be tucked in so that there are no fluttering ends. If you have long hair, pick it up and hide it under a hat. Wear safety goggles and a respirator. Wearing ear protectors is recommended as the noise level can be quite high when working with a circular saw.

Before starting the saw, you need to check it for defects in the saw blade, make sure that it is secured properly. Check if the riving knife is installed correctly, and then check that the guard is working properly.

If your saw has a short cable, you may need an extension cord to help you navigate the work area comfortably. It is advisable to use a circular saw with a soft start function so that the tool does not jerk when starting.

Safety tips when using the saw

Before starting work, run the circular saw with no load. As you cut the material, observe the following rules and recommendations:

• When starting work, you should stand on the left side of the machine so that if the workpiece is accidentally thrown out, it will not hit you.
• Make sure there are no nails, pins, pieces of dirt or concrete in the workpiece or on the surface of the workpiece that might interfere with the cut.
• It is forbidden to transfer objects over a working circular saw.
• If there are knots or cracks in the wood, drive the saw more slowly when approaching them.
• When changing the saw blade, be sure to unplug it.

Circular saw table

When working with a large volume of sawn material, it is not always comfortable to hold the tool in your hands for a long time. It is much more convenient to fix the tool on a special table, so the cut will be more accurate and faster. All craftsmen prefer to use:

After making your own table, it is important to know how to properly secure the hand-held circular saw to the table. There are just a few rules here:

• The instrument is placed inside a prepared compartment that fits the instrument exactly.
• Saw foot bolts securely to table.
• The disc must fit freely into the slot.

How to choose a circular hand saw?

When buying a tool, you should focus on a number of specific parameters:

• Engine power. The higher it is, the faster and with less effort you can cut. In addition, large-diameter cutting blades can be installed on powerful saws (from 3 kW).
• Cutting depth. There are 4 standard sizes that you need to select based on your needs.
• The hand-held circular saw for wood can be adjusted to the inclination of the cut.
• Stationary chip removal system or the ability to connect a vacuum cleaner. A very convenient option that allows you to work with virtually no dust and debris in the workshop or at home.
• The start lock is an important safety feature that prevents the tool from being switched on accidentally.

Circular hand saw device

When building and repairing both your home and on a professional basis, a circular hand saw becomes a convenient help in your work. The tool is very convenient for sawing wood of different thicknesses, thin metal and plastic products, such as skirting boards. Such a manual circular has several varieties, but the device of each of them is typical. The standard design consists of:

• Protective plastic housing with one or two handles.
• A special guard for the saw blade, which performs a protective function during operation.
• Platforms for holding and guiding the disc. It is necessary to adjust the depth and angle of the cut.
• Riving knife. It is needed in order to release the knife if it gets stuck in the wood.
• Electric motor. A special disk is attached to its shaft using bolts.

Circular hand saw. device, principle of operation, features of different types

To work with wood, plastic and even metal workpieces at home, a circular hand saw is often used, as a more productive analogue of the simplest sawing tool. It has several varieties and nuances of application, which are important to consider when working.

Circular Saw Functions

The main “duty” of a circular saw is to cut a large number of planks, drywall, laminate, plastic panels, soft metal and more. It is indispensable for the construction of a house or summer cottage, it is also useful when laying floors in an apartment or wall cladding with decorative panels. For quick work performance and ease of use, the circular electric hand saw is equipped with a number of additional functions:

• Immersion in the material. This feature is very handy when working with large slabs.
• Adjustment of the speed of rotation of the cutting blade. Different materials require different rotational speeds to achieve a smooth, burr-free cut.
• The soft start function is essential to extend the life of the cutting blade. Thanks to her, the saw smoothly picks up speed after starting, and does not immediately spin the shaft to maximum speed.
• The laser pointer is an optional accessory for a hand held circular saw. However, such a pointer is convenient to use when carrying out fast work.

The principle of operation of the circular hand saw

The tool is used to cut surfaces evenly, longitudinally or transversely. Circular sawing is not possible with a circular hand saw. The principle of operation of such a unit is simple:

• From the motor shaft, the torque is transmitted to the cutting disc.
• The saw blade rotates around its axis at high speed, which makes it easy to cut the desired surface.

Depending on the depth of cut, the tool is divided into several categories:

• Circular mini hand saws can cut material up to 46 mm thick.
• Medium tool handles surfaces up to 55 mm.
• Large machinery can cut workpieces with a thickness of about 70 mm.
• Professional equipment cuts products about 140 mm thick.

Types of circular hand saws

• A hand tool that the master moves independently.
• Stationary saw on a special table, designed for placement in workshops and workshops.

The circular hand saw is divided according to power classes into:

• Household appliances up to 2.2 kW.
• Semi-professional models that are more powerful than household ones. They have great functionality.
• Professional units with increased power and functionality. Used in manufacturing.

Another difference is the way of transmitting torque, so, they distinguish:

• Electrical Models Connected to Standard Power Supply.
• Cordless hand-held circular saw handy where you don’t need a power outlet nearby.
• Models with a manual drive, which are practically not used at the moment, are leaving the past.

Circular hand saws rating

Professional builders and do-it-yourselfers identify certain tool models that have the most optimal characteristics for the job. Among them:

• Makita HS7601 is a great device for home use with two branded discs included. Cost. 121.
• DeWALT DWE560 is a model with the ability to connect a construction vacuum cleaner. Cost. 140.
• The Hammer CRP 1500 D is a quality lightweight saw with a convenient carrying case. Cost. 93.
• Bosch GKS 190. The Bosch hand-held circular saw is considered one of the best tools in its price segment. Cost. 128.