General description 10PCS 1/4 Inch Hex Shank Screwdriver Bits Holder Extension Bar Keychain Screw Adapter Drill Change is a versatile tool set that includes 10 pieces of 1/4 hex shank handle keychain extension rods. Each set comes with a black metal hanging buckle, making it easy to carry and use with various tools. Technical specifications Material: Aluminum alloy Color: Multicolor Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with most 1/4 fast hex handles Compatible with 1/4 hex sockets Compatible with electric screwdrivers and hand-held screwdrivers Package includes: 10 x 1/4 hex shank handle keychain extension rods, 1 x metal hanging buckle Usage Ideal for transferring drill bits and screwdrivers Can be used as a keychain for easy access Facilitates one-handed operation for quick drill bit changes Other information Chrome-plated for anti-rust and corrosion resistance Designed for maximum durability and extended service life Portable and easy to