Proto® TorquePlus™ Socket, Deep Length, No Impact Rated, Measurement System: Metric, Square Drive, 3/8 in Drive, 6 mm Socket, 54 mm Overall Length, 8 mm Opening Depth, 16.5 mm Drive End Width, 10 mm Socket End Width, Ball Locking, 6 Points, 42.8 mm Bolt Clearance Depth, Alloy Steel, Full Polished