Armstrong Drive Socket, Standard Length, Measurement System Imperial, 1/2 in Drive, Square Drive, 6 Point Socket, 1-1/2 in Socket, 2-1/4 in Overall Length, 2 in Drive End Width, 2 in Socket End Width, 1.062 in Bolt Clearance Depth, 0.96 in Opening Depth, Ball Locking, High Alloy Steel, Chrome Plated