If you have any familiarity with woodworking and tools, you probably know at least a little about the automatic circular saw. These durable pieces of equipment use a metal disc or blade that is circular in shape. The blade incorporates specially designed serrated teeth that can efficiently and effectively cut through wood and a variety of other materials.
There is a surprising lack of information about who originally invented the circular saw. Many have made claim to this accomplishment, including both individuals and companies.First seen in large lumber yards and saw mills, early circular saw devices were operated with power that was generated by water. Today, essentially every circular saw is powered by electricity.
Some of these machines are portable and can be held in the hands, while others are larger, table-mounted devices. The housing of a circular saw holds all of its internal, electrical components. These components create the high speeds necessary to spin the blade through the material being cut.
The way a circular saw operates is fairly direct and simple. The material to be cut is held firmly or secured by a clamp or vise. The blade is then placed against the material. The blade's serrated teeth are sharp as a razor, and each one of these multiple teeth strikes individually against the material at a high rate of speed. The high-speed spinning of the blade causes chips in the wood, which are seen by the unaided eye as a straight cut.
Typically, the serrated teeth help remove the fine wood chips from the cut as the blade passes through the material. Occasionally, however, wood chips will get caught in the cutting path. This creates a stall or hesitation in the saw blade's movement known as "binding." Slightly shifting the blade and material is usually sufficient to remove the obstruction. However, when the binding is severe the saw blade may sometimes need to be lifted entirely away from the material.
An automatic circular saw is able to accept several types of blades. Using different blades will make a circular saw be able to do more things. A carpenter, homeowner or woodworker can cut and shape a variety of materials with an automatic circular saw, including wood, metal, plastic and even some types of masonry. The right type of saw blade must be used for the type of material being cut, however.
A circular saw can be used for many things. Today, there is hardly a man alive who has not either owned one himself or used one at some time. The automatic circular saw has become a mainstay that can be found in most garages and homes.
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