The MILWAUKEE SHOCKWAVE Impact Duty Carbide Multi-Material Drill Bits are the most versatile bits, designed to tackle materials such as brick, block, concrete, steel, aluminum, ceramic tile, backerboard, wood, PVC, and drywall. The aggressive multi-grind carbide tip delivers up to 10x longer life in stacked materials and up to 85% faster drilling speeds in metal. Equipped with a 1/4" hex shank, these general-purpose bits are compatible with impacts, drill/drivers, and hammer drills. MILWAUKEE SHOCKWAVE Impact Duty Multi-Material Drill Bits provides the ideal all-in-one solution for the widest variety of materials, tools, and applications, available in diameters up to 1/2 inch.