Irwin Assorted Impact Bit Drawer Set 57 Pc.
These impact insert bits are built for maximum durability and long life with impact drivers. They are forged bit (vs. milled) for superior fitments, which reduces stripping and increases life of bit 3X (Square and Phillips bits only).
Manufactured with heavy-duty, cold-forged, high-grade steel to withstand high torque output
Black oxide finish resists corrosion and increases life of bit
1/4 In. shank diameter
1 In. to 3 In. overall length