Armstrong Drive Socket, Standard Length, Measurement System Imperial, 1/2 in Drive, Square Drive, 12 Point Socket, 1/2 in Socket, 2.312 in Overall Length, 0.94 in Drive End Width, 1-3/4 in Socket End Width, 0.438 in Bolt Clearance Depth, 0.312 in Opening Depth, Ball Locking, High Alloy Steel, Chrome Plated
