Heavy duty countersink bit, made from high speed steel hardened and tempered to 55HRC for longer life. The 90° head incorporates five cutting edges and an 8mm diameter shank. Suitable for use with hand or power drills on hard or softwood, metals and plastics. Features and Benefits • For use with hand or power drills in wood, metals and plastics • HSS hardened and tempered to 55HRC for long life • 8mm diameter shank Specifications Diameter: 13mm Length: 50mm Head angle: 90° Flutes: 5 Material: High speed steel Connection: 8mm Round shank Contents 1 x HSS Rosehead Countersink Bit, 12mm