Armstrong Impact Socket, SAE Standard Length, 5/8 in Socket, 3/4 in Drive, Squared Drive, 1-7/8 in Overall Length, 8 Points, 1-5/8 in Drive End Width, 1-1/4 in Socket End Width, 1/2 in Bolt Clearance Depth, 3/8 in Opening Depth, High Alloy Steel, Black Oxide