Selected from aluminum Includes 6pcs screwdriver Bits holder extensions and carabiner Remove Bits by pulling back the external metal rings during disassembly 1 / 4 " shank suitable for most drill Suitable for home, auto, woodworking, and professional use Suitable for carrying frequently used Bits Suitable for various power screwdriver, handheld screwdriver, and drill Can also be used as a Keychains Most Bits used in different electric driver and handheld driver fit to our 1 / 4 Bits holder This make this drill Bits holder highly practical for your Tool improvement Each Bits is and release Bits Keychains Holder keep your Bits organized and make easy to transport whenever you go, Manufacturer: Oxxggkao