Can wrench, Fluke Networks, 3/8 and 7/16", 7" long tool is designed for telephone craft work to install fuses and connect wires to terminals. Double-ended tool offers both 3/8" and 7/16" thin wall hex sockets. The 3/8" end is nickle-plated and the 7/16" is BLACK-oxidized allowing for quick size identification. Sockets have reduced outside diameters that will fit all new network interface devices. Built-in ribs on the barrel provide comfort, safety and greater torque power. Can wrench measures 7" in length.