Lightweight compact size for easy storage and portability. Wide compatibility with common tools - Designed for installation on tools with forms such as pneumatic screwdrivers, electric screwdrivers, air drills, electric drills, and screw driving tools. Easy to use - Suitable for the screwdriver handle or electric screwdriver tools (three-jaw chucks) to adapt the sleeve. - After installation, the connection can be converted into a square drive, enabling sleeve installation. A powerful conversion tool. Durable construction - Made from high quality metal, stable, firm, and durable. Typical use scenarios - On the jobsite to convert tool connections for sleeve installation. - In tool maintenance or modification to enable sleeve fitting on existing chucks. - In a workshop setting to adapt handles or drivers for sleeve installation and custom projects.