Proto® TorquePlus™ Socket, Standard Length, Yes Impact Rated, Measurement System: Imperial, Square Drive, 3/4 in Drive, 1 in Socket, 2 in Overall Length, 5/8 in Opening Depth, 1-5/8 in Drive End Width, 1-5/8 in Socket End Width, Side Locking Hole Locking, 12 Points, 15/16 in Bolt Clearance Depth, Alloy Steel, Black Oxide