IRWIN 1837464 Power Bit, #3 Drive, Phillips Drive, 1/4 in Shank, Hex Shank, S2 Steel

For impact drills and drivers. Engineered for maximum durability and long life with impact drivers. Fit fasteners more precisely, which reduces stripping. Manufactured with heavy-duty, cold-forged, high grade steel to withstand high torque output. Black oxide finish resists corrosion.