Proto® TorquePlus™ Socket, Standard Length, No Impact Rated, Measurement System: Metric, Square Drive, 3/8 in Drive, 22 mm Socket, 33.5 mm Overall Length, 17 mm Opening Depth, 29.9 mm Drive End Width, 29.9 mm Socket End Width, Ball Locking, 12 Points, 16 mm Bolt Clearance Depth, Alloy Steel, Full Polished