TEKTON 14242 1/2-Inch Drive by 7/8-Inch Deep Socket, Cr-V, 12-Point 12-point opening smoothly slides onto hex-shaped fastener heads at twice as many angle positions as 6-point sockets Advanced design shifts contact away from corners onto flat sides to reduce the chances of round off Extra-deep broach reaches over long, threaded shafts to access nuts Detent notches in drive end lock onto ratchets and extensions Made from premium chrome vanadium steel with a durable mirror chrome plated finish