Features: 1/4" shank suitable for most drill. Suitable for home, auto, woodworking, and professional use. Suitable for carrying frequently used Bit. Suitable for various power screwdriver, handheld screwdriver, and drill. Can also be used as a Keychains. Selected from aluminum. Includes 6pcs screwdriver bit holder extensions and carabiner. Remove Bit by pulling back the external metal rings during disassembly. Each bit is easy to install and release. Bit Keychains Holder keep your Bit organized and make them easy to transport whenever you go. Most Bit used in different electric driver and handheld driver fit to our 1/4 bit holder. This make this drill Bit holder highly practical for your Tool & home improvement. Specifications: Component:Aluminum Size:Approx.3.8x1.4cm/1.5x0.55inch Package Includes: 6Pcs Drill Bit Holder note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.