Fast Chip Removal 100mm Hole Saw for Expanding Holes

Hole saws take the form of a short open cylinder with saw-teeth on the open edge, used for making relatively large holes in thin material. They remove material only from the edge of the SHOWIRK Tungsten carbide teeth provide excellent wear and heat resistance. One-piece construction with no assembly required. Ejector spring for easy removal of waste slug. Safety collar stop prevents over-penetration for safe and fast operation. They can be used to make large holes in wood, sheet metal and other materials,that diameter range from 14mm to 200mm