Lightweight Size: Portable and small size, easy to store and carry, bring you convenience. Scope of Application: It can be used for installation on tools with shapes such as pneumatic screwdrivers, electric screwdrivers, air drills, electric drills, and manual screwdrivers. Usage: suitable for screwdriver handle or electric screwdriver tool (three-jaw chuck) to the sleeve. After installation, the joint can be converted into a square for head, which can be used for the installation of the sleeve. A powerful tool for conversion metal , stable, firm and Hexagon connecting rod adapter drill chuck,M14 polishing disc connecting rod power tool accessories., Manufacturer: she1qi_cxy