Wright Tool Socket, Shape II Standard Length, Series, Measurement System, Square Drive, Drive Size, in 1/2, Socket Size, in 7/8, 1-5/8 Overall Length, Opening Depth in, in 55/64, 1-3/16 Drive End Width, Socket End Width in, in 1-3/16, Ball Locking, Number of Points, Bolt Clearance Depth, Alloy Steel, Finish.