Can Wrench Ergonomic 7/8″ Diameter Handle, Hex Outer Socket. Double end can socket wrench, 3/8″ and 7/16″ hex, orange Impact resistant thermoplastic ergonomic handle. Used in placing fuses in cable terminals and connecting wires to fuses and binding posts. The walls on both sockets are thin enough so they can be used to work locking devices on most terminals and cabinets. 7″ long.