The Circular Saw Is a Machine Using a Toothed Metal Cutting Disc or Blade

The circular saw is a machine using a toothed metal cutting disc or blade. The term is also loosely used for the blade itself. The blade is a tool for cutting wood or other materials and may be hand-held or table-mounted. It can also be used to make narrow slots (dados). Most of these saws are designed with a blade to cut wood but may also be equipped with a blade designed to cut masonry, plastic, or metal. There are also purpose-made circular saws specially designed for particular materials. While today circular saws are almost exclusively powered by electricity, larger ones, such as those in "saw mills", were traditionally powered by water turning a large wheel. Process Typically, the material to be cut is securely clamped or held in a vise, and the saw is advanced slowly across it. In variants such as the table saw, the saw is fixed and the material to be cut is slowly moved into the saw blade. As each tooth in the blade strikes the material, it makes a small chip.[1] The teeth guide the chip out of the workpiece, preventing it from binding the blade. Characteristics Cutting is by teeth on the edge of a thin blade The cut has narrow kerf and good surface finish Cuts are straight and relatively accurate The saw usually leaves burrs on the cut edge Saw setting should be done geometrically. Source: en.wikipedia.org