CRESCENT® Socket, System of Measurement: Imperial, Hex Drive, 1/2 in Drive, 1-1/4 in Socket, Standard Length, 1-1/2 in Overall Length, 0.8 in Opening Depth, 1.65 in Drive End Width, 1.65 in Socket End Width, 12 Points, 1.129 in Bolt Clearance, Alloy Steel, Finish: Full Polish Chrome