Features and benefitsmade of high quality alloy steel chrome-molybdenumengineered specifically for use with impact tools using the most up to date industrial specificationstested to the highest specifications to deliver outstanding performance at the competitive costlifetime warrantygrey pneumatic sockets are designed for professional tool users. This socket features our high torque drive. This limits the amount of wear on the corners of the fastener and the socket. It also improves the strength of the socket, transfers increased torque to the fastener and allows easier access to tight areas.