Milwaukee® Rotary Hammer Drill Bit, 2-Cutter, 1/2 in Dia, 27 in Overall Length, 22 in Cutting Depth, 22 in Flute Length, 3/4 in Shank, Spline Shank, Centering Point, Right Hand Cutting, Carbide Cutting Edge, High Carbon Steel, Uncoated, Silver, Applicable Materials: Brick, Block, Concrete and Masonry