MILWAUKEE PROFESSIONAL TOOLS Premium series multi-material tips Designed to be used with impact wrench and drill/drivers. Hexagonal shank up to a length of 260mm, three-sided shank up to a length of 400mm. Tungsten carbide (TCT) cutting edge allows you to drill on concrete, bricks, tiles, concrete blocks, thin metal, medium-soft ceramic tiles, all types of wood and PVC. White groove for easy identification. .