9 Piece Varipitch Universal Holesaw Plumbers Kit manufactured from a bi-metal material with hardened teeth made from high speed steel and a variable tooth pitch for fast smooth cutting.\n\nThey are ideal for use on a wide variety of materials including wood, chipboard, plywoods, plasterboard, non-laminated plastics, and non-ferrous metals. Suitable for use in most variable speed power drills. |