General description These 3pcs 1/4 Shank Magnetic Bit Holder Extensions are designed for electric drills and screwdrivers, providing a practical solution for various fastening tasks. Made from high-quality carbon steel and chrome vanadium steel, they ensure maximum durability and a long service life. The strong magnetism allows for quick connection and disconnection, keeping the bits securely in place while driving. Technical specifications Material: Carbon Steel and Chrome Vanadium Steel Hex Shank Size: 1/4 Hex Socket Size: 1/4 Length: 6cm / 2.36", 10cm / 3.93", 15cm / 5.9" Quantity: 3 Compatibility and accessories Universal 1/4 hex shank and 1/4 hex socket fit most power drivers and handheld drivers Compatible with various screwdrivers, drills, and bits Usage Ideal for removing or tightening a large number of screws Suitable for various tasks after starting or loosening screws Other information Compact size for easy portability, fitting in many tool bags