Irwin Impact Fastener Drive Set 33 Pc.
This impact fastener drive bits are engineered for maximum durability and long life with impact drivers. These bits are forged rather than milled, so they fit fasteners more precisely.
Forged bit (vs. milled) for superior fitments, which reduces stripping and increases life of bit 3X
Manufactured with heavy-duty, cold-forged, high-grade steel to withstand high torque output
Black oxide finish resists corrosion
Increased life of bit