Milwaukee® Rotary Hammer Drill Bit, 4-Cutter, 2 in Dia, 23 in Overall Length, 18 in Cutting Depth, 18 in Flute Length, 45/64 in Shank, SDS Max® Shank, Centering Point, Right Hand Cutting, Carbide Cutting Edge, High Carbon Steel, Uncoated, Silver, Applicable Materials: Brick, Block, Concrete and Reinforced Concrete