DeWALT® High Impact Carbide™ Hammer Drill Bit, 4-Cutter, 7/8 in Drill Bit, 22 in Overall Length, 17 in Cutting Depth, 4 Flutes, Longer Spiral Flute, 17 in Flute Length, 3/4 in Shank, Spline Shank, Rock Carbide Point, Right Hand Cutting Direction, Carbide Cutting Edge, Steel, Bright, Applicable Materials: Concrete and Masonry. DeWALT® HIGH IMPACT CARBIDE™ DW5753 4-Cutter Hammer Drill Bit, 7/8 in Drill Bit, 3/4 in Spline Shank, 17 in D Cutting, 22 in OAL