Description: 1\/4 Inch 60mm Quick Release Hex Shank Screwdriver Bit Holder Specification: Material Chrome vanadium steel Shank type hex shank Shank diameter 6.35mm(1\/4") Length 60mm Features: Suitable for electric drill, screwdriver, wind batch transfer using to play the role of releasing bit holder. Can be used for prolonging different kinds of screwdrivers. Built-in magnetic, fast, fastening, greatly improve work efficiency. Rustproof, very durable, convenient to use. Package Included: 1 x Screwdriver Bit Holder More Details: