Spring-loaded ball bearing on head keeps socket in place Aluminum alloy material suitable for heavy-duty impact wrenches Suitable for quick change 1/4" Chuck systems or straight into drill chucks Change your hand socket set into a driven socket set This set is perfect for your hammer drill or drill press and allows you to replace your ratchet by a power tool < p>These shockproof adapters handle the most demanding applications. The hex socket fits all quick change chucks as well as standard drill chucks. 1/2" Widely used: home DIY, carpentry, auto parts, specializing in machine repair, etc. Turn your hand into a socket set