Hilmor 1937912 SBSFC Fast Connect Screwdriver Bit Set Product Type_Oil Filters Especially Hard Trails 0 1MZ FE 2000 Especially Hard Trails Recommended for use when: day to day hazards require the best combination of durability and consistency FEATURES: Impact Compatible Extension and bits are specially manufactured for use with impact drivers 1 4" Shank The 1 4" quick change shank is designed for use in impact drivers and rotary drills Secure Fit Precision tip geometry allows for a better fit and reduced stripping Secure Hold A rare earth magnet helps maintain a secure hold to keep fasteners firmly in place Reduced Stripping Designed to drive fasteners on the side instead of on the corners INCLUDES:2 1 2” Fast Connect Bit Extension for 1 4"1 7 8” Magnetic Nutsetters for 1 4"