CRESCENT® Socket, System of Measurement: Imperial, Hex Drive, 3/8 in Drive, 13/16 in Socket, Deep Length, 2-1/2 in Overall Length, 1.13 in Opening Depth, 1.1 in Drive End Width, 1.1 in Socket End Width, 6 Points, 0.3 in Bolt Clearance, Alloy Steel, Finish: Full Polish Chrome