What is the difference between a circular saw and a miter saw A miter saw in terms of its functional properties can be considered a relative of a circular saw.
What is the difference between a circular saw and a miter saw
The circular saw has a cutting mechanism. It is a serrated disc. It serves for rip cuts, although with the help of additional rails, you can unfold the blade at different angles and get cross and inclined cuts. The quality of the cut is influenced by the type of blade, its diameter, tooth shape and sharpening angle. The more teeth. The lower the speed, but the quality of the cut is better. The power of circular saws ranges from one to two and a half kilowatts. Some of these instruments are very difficult to handle while suspended.
- What is the difference between a circular saw and a miter saw
- How to choose a circular saw
- How to choose a saw blade
Circular saw Skil 5866 AF
This model stands out from a number of similar ones, strict ergonomic design and excellent technical characteristics. This saw is very comfortable to use thanks to the special rubberized handles, which make it easy to hold the tool and reduce vibration. The saw is equipped with a powerful motor (1.5 kW) and a universal 24-tooth saw blade with a diameter of 190 mm (speed 5500 rpm), which allows making cuts up to 66 mm deep. An important feature of this model is the double laser pointer, which allows not only making accurate cuts, but also showing the thickness of the blade, due to which you can see how much material will be consumed when cutting. The saw includes a plastic case and an adapter for connecting to an industrial vacuum cleaner. You can also install a sawdust and shavings bag on the saw. The cost of this circular saw is about 7,000 rubles.
How to choose a circular (circular) saw
Giving useful tips on choosing a circular saw for a home workshop, we will review the popular models.
Those who deal with construction or locksmith tools are probably familiar with a circular or circular saw from childhood. This tool was necessarily present in the arsenal of home craftsmen. Particularly appreciated were these models of circular saws, which were attached to a table or workbench in order to use it as a stationary saw. Today, the repair site on its own will conduct an overview of modern circular (circular) saws from various manufacturers MAKITA (Makita), WORX, BOSCH (Bosch), Skil (Skil), AEG, BlackDecker and other models from various price categories. Recall that we have already told you how to choose a chainsaw, hammer drill and drill for the home.
Mitchell and Sillivan, the founders of the world famous equipment manufacturer SKIL, are considered the creators of the circular saw. A tool called Skilsaw, the prototype of the modern circular saw, was released into series production in the mid-1920s. For nearly a hundred years that have passed since the first circular was issued, the appearance of the instrument has completely changed. And the leading manufacturers of plumbing tools are constantly improving the circular saws that are always in great demand.
It is very easy and convenient to work with a circular saw, however, care must be taken and safety precautions taken into account. Neglecting to use the tool can cause serious injury.
Circular saw AEG HK 75 A
This circular saw is equipped with a 1.4 kW motor and a 210 mm (5600 rpm) blade. The front saw handle is rigidly attached to the stamped support platform, which ensures the stability of the tool during operation. The long (4 m) power cord provides additional convenience for operation, allowing you to do work without using extension cords.
In order to prevent spontaneous activation, manufacturers have equipped this saw model with an emergency stop of the start button. The saw is supplied with a side ruler for precise cutting of material and an adapter for connecting to an industrial vacuum cleaner. The cost of this model is about 7,500 rubles.
Layout
For comfortable work. The plunge-cut saw blade is located above the sole and is completely covered by a protective cover. All controls are located compactly, so it is convenient to work with the tool. Compared to conventional circulars, submersibles look bulky, but they are ideal for joinery work.
Plunge-cut circular saws
Submersible circulars are expensive and are found in the catalogs of only a few well-known manufacturers. But among the pros, the interest in this tool is great. What are its advantages over a conventional circular?
Operating principle
They crash into the surface. Before cutting, the user sets the depth and, if required, the tilt of the blade, then turns on the saw, releases the head lock, plunges the blade into the wood and guides the tool along the mowing line. After the cut is completed, the pressure on the head is loosened and it is retracted to the upper position by a spring.
Circular saw blades for wood and metal: sizes and varieties of circles
The circular saw works most efficiently with the matching saw blade consumable. The choice of a blade determines the quality of the cut, speed, volume of waste and defective parts. An unsuitable disc is dangerous and for the master himself there is a high probability of injury.
Many owners of disc tools try to get by with one circle that comes with the kit. As a rule, the reason is the high cost of quality consumables. But if the saw is used often and on large volumes of material, the choice should be taken seriously.
Teeth criterion for disc selection
First of all, when selecting, pay attention to the number of teeth. It is this that indicates the purpose of the rig. Carbide wheels with a small number of teeth are excellent for rough rip sawing in a wide variety of woods and in pressed sheets. If you cut them across the fibers, the line will be sloppy.
Teeth size
Saw blades for wood can be universal or finishing. Finishing is designed for rip or cross cuts. They differ in the size of the teeth and wiring. The larger the tooth, the easier it is to rip. At the same time, it makes cross-cutting roughly, tears the fibers and can chip. Therefore, wheels with large teeth should be selected for rip sawing. The cavities between the teeth must also be deep to facilitate chip evacuation. The optimum number of teeth on a blade for longitudinal cutting with a diameter of 250 mm is 20-24 pieces.
When planning rip and cross cuts in wood, opt for medium-sized teeth, for a cross-cut there should be about 4648 teeth.
If you use a fine-toothed blade for ripping, the work will be very slow and the tool will overheat. This is a very dangerous phenomenon that threatens with many troubles:
- The saw blade is on;
- The saw moves away from the cut line;
- In places of overheating, the material swells and friction increases;
- Where the saw gets hotter, it deforms into a propeller shape.
To reduce the effect of sudden and rapid overheating, holes and slots are made in the surface of the canvas. They act as thermal compensators and are located along the radii from the center to the edge. In some models, the holes are partially filled with copper, this reduces noise and promotes faster cooling. There are models with rolled grooves that reduce stresses in the direction of the radius. They appear when working at high speeds.