Precise Holes - The Carbide Hinge Cutting Bit produces very precise results in abrasive materials. Its special features make it ideal for use by joiners and carpenters, especially for window, door and kitchen building. Made of carbide with diamond-ground TC (tungsten carbide) cutters, the bit achieves best results. Furthermore, the centring tip provides exact drilling starts, and the two main and two side cutters slice through materials, achieving highly accurate and splinter-free blind hole diameters. It is suitable for use on abrasive materials such as hardwood, plywood, chipboard and wood fibreboard. This hinge cutting bit has a cylindrical shank system, and is intended for use in portable power drills and drill stands. Cylindrical shank compatible with three-jaw drill chucks. Features and Benefits • Precise Holes in Abrasive Materials • Carbide Hinge Cutting Bit produces very precise results in abrasive materials • Made of carbide with diamond-ground TC cutters give great results