The Milwaukee 7/32 in. x 4 in. x 6 in. SHOCKWAVE Carbide Hammer Drill Bit uses sharpened carbide to deliver up to 5X longer life in concrete and up to 2X faster drilling into masonry materials. Engineered with a precision ground tip, these bits deliver faster starts and less walking in concrete, brick, and block. The carbide-tipped masonry drill bits' wide flutes allow for fast dust removal. Equipped with a 1/4 in. Hex Shank, Milwaukee SHOCKWAVE Carbide Hammer Drill Bits are the ideal solution for drilling in masonry materials with both impacts and hammer drills/drivers.