Circular Saw with Arbour Tilts

The saw gets its name from the shaft on which the blade spins (the arbor). That axle can be tilted with respect to the horizontal tabletop (for cutting at angles) and raised or lowered to adjust the blade's cutting depth.A combination blade has a combination tooth configuration with groups of five teeth -- four ATBs and one FT -- and a large gullet after each group. A gullet is a space cut into the blade that allows for chip removal. Generally, a ripping blade has deep gullets, and a crosscutting blade has shallower ones.Circular saws are hand-held power tools with high-speed steel blades designed to cut wood and other materials. Circular saws come in two main designs, the worm drive and the sidewinder. A worm-drive saw has a motor with more torque, making it easier to cut thick, difficult materials like hardwoods.The circular saw is perhaps the most commonly used saw today, used extensively in both professional construction projects and DIY home improvement. This power tool uses a round metal blade edged with sharp teeth to cut an array of material such as woods, metals, cement block, brick, fiberglass, plastics and slate.