Irwin 1837480#2 Square Recess x 3" Impact Power Bits - 10 per Bag #2 Square Recess Point x 3" Overall Length with 1/4" Hex Shank Built for maximum durability and long life with impact drivers Forged bit (vs. milled) for superior fitment, 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 and increases life of bit