Super Heavy-Duty Offset Slugging Wrenches, 17 3/8 in, 3 25/32 in Opening

Features: Heavy box walls provide greater torque transmission | Box opening remains on fastener when wrench is struck | High strength rectangular design withstands heavy sledging | Straight handle resists springing for easier nut turning | For close quarter work where hammer or sledge is required to loosen frozen nuts or set large fasteners