The Apex AP5628 COOPER TOOLS OPERATION 1/2DR 7/8 4PT SOCKET is a socket designed for use with the COOPER TOOLS 1/2DR 7/8 4PT SOCKET. It is made of durable, high-quality steel for long-lasting use. This socket is perfect for use in a variety of applications, including automotive, construction, and home repair. The Apex AP5628 COOPER TOOLS OPERATION 1/2DR 7/8 4PT SOCKET is a socket designed for use with the COOPER TOOLS 1/2DR 7/8 4PT SOCKET. It is made of durable, high-quality steel for long-lasting use. This socket is perfect for use in a variety of applications, including automotive, construction, and home repair.