DEWALT Impact Ready Socket features recessed corners to distribute torque across flats to promote life of the socket. This socket is thinner than wrench sockets for tough to access areas, and is designed for use in both corded and cordless impact drivers and wrenches. This socket features large laser etched markings, making it easy to identify, and provides the Impact Driver user with a socket solution.\nTightening bolts in steel framework, tightening hex drive nuts / bolts in fixings, driving coach screws into wood Supplied in a heavy duty high-density polyethylene.