The Shockwave Lineman's 7/16" to 5/8 12PT 2-in-1 Socket is design to increase efficiency and safety for Lineman. With an anti-rust stainless steel spring loaded design, it is the most durable 2-in-1 socket design and provides hands-free changes. The 12PT design will fit all 7/16" and 5/8" hex and square hardware for increased versatility. A 7/16" to 1/2" impact adapter is included

(1) Milwaukee 49-66-5120 Shockwave Lineman's 12PT 7/16" & 5/8"2-in-1 Socket