Proto® TorquePlus™ Socket, Deep Length, No Impact Rated, Measurement System: Metric, Square Drive, 1/2 in Drive, 25 mm Socket, 82.5 mm Overall Length, 30 mm Opening Depth, 33.2 mm Drive End Width, 33.2 mm Socket End Width, Ball Locking, 12 Points, 66.5 mm Bolt Clearance Depth, Alloy Steel, Full Polished