Armstrong 12-138 Standard Length Drive Socket, Imperial, 1-3/16 in 12 Point Socket, 1/2 in Square Drive

Armstrong Drive Socket, Standard Length, Measurement System Imperial, 1/2 in Drive, Square Drive, 12 Point Socket, 1-3/16 in Socket, 1.71 in Overall Length, 1.563 in Drive End Width, 1.563 in Socket End Width, 1 in Opening Depth, Ball Locking, High Alloy Steel, Chrome Plated