Quick Release - Quick release discs lock securely onto the socket so they won't come loose. Non-slip - Make sure the ratchet is always connected to prevent slipping or idling. Robust: Very robust and durable. Innovative and scalable design. Comfortable Grip - Very easy and comfortable grip to help you save a lot of energy when using it. Ideal for home, garage, metal or woodworkers, builders, auto mechanics, hobbyists and do-it-yourselfers, professionals, etc. Very robust and durable. Innovative and scalable design. Perfect for home, garage, workshop, metal or wood workers, builders, auto mechanics, hobbyists, DIYers, professionals and more. The shaft extension locks and features a comfortable two-tone handle, as well as forward and reverse switches and quick release buttons. Length: 16mm. Dimensions: 16 x 1.3 cm.