Scope of application This adapter can be installed on tools with pneumatic screwdrivers, electric screwdrivers, pneumatic drills, electric drills, and manual screwdrivers. Function and use Fits a suitable screwdriver handle or electric screwdriver (triple jaw chuck) of the sleeve. The joint can be converted into a square head that uses the sleeve. This is a powerful conversion tool. Lightweight and compact Lightweight, portable, and easy to store for convenient use. Specifications and compatibility Hex Connecting Rod Adapter Chuck M14; Polishing Disc Connecting Rod; Power Tool Accessories. Use scenarios - Convert a standard screwdriver into a square-drive tool to reach fasteners in tight or recessed spaces. - Attach to a drill or electric screwdriver to drive or remove square-head fasteners in confined areas. - Use with a polishing disc via the connecting rod for finishing or surface prep on small components.