Wright Tool Socket, Shape II Standard Length, Series, Measurement System, Square Drive, Drive Size, in 3/8, Socket Size, in 7/16, 15/16 Overall Length, Opening Depth in, in 7/32, 41/64 Drive End Width, Socket End Width in, in 41/64, Ball Locking, Number of Points, Bolt Clearance Depth, Alloy Steel, Finish.