Fully hardened high carbon steel bit. Precision ground tri-point bit for a clean cut and reduced splintering. For drilling softwood, medium hardwood, particle board, plasterboard, plastics and fibreglass. For use with drills, drivers and hand braces. Includes 6, 10, 13, 16, 20, 22, 25 and 32mm bits, 300mm extension bar and hex key.