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, these holders 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 fit for most power drivers, handheld drivers, and bits Usage Ideal for removing or tightening a large number of screws after starting or loosening them Versatile use with various screwdrivers, drills, and bits