Proto TorquePlus Socket, Deep Length, Series, Yes Impact Rated, Measurement System, Square Drive, Drive Size, in 3/4, Socket Size, mm 30, 3-1/2 Overall Length, Opening Depth in, in 2-7/16, 1-21/32 Drive End Width, Socket End Width in, in 1-7/8, Side Locking Hole Locking, Number of Points, Bolt Clearance Depth, in 2-9/32, Alloy Steel, Finish