GP® Socket, Deep Length Shape I, Yes Impact Rated, Measurement System: Imperial, Hex x Square Drive, 1/2 in Drive, 9/16 in Socket, 3.27 in Overall Length, 0.95 in Opening Depth, 0.94 in Drive End Width, 0.87 in Socket End Width, 6 Points, 2.65 in Bolt Clearance Depth, Chrome Molybdenum Steel