The Proto Offset Slugging Wrench features a non-reflective black oxide finish for use where non-plated products are required. The 12 point box end allows fine indexing and helps improve speed and access. The wrench is ideal for use in close quarters where a hammer or sldge is required to loosen frozen nuts and set large fasteners. The high strength rectangular design is able to withstand heavy sledging and transmits more power effectively to the fastener. The heavy box walls offer excellent transmission of torque to the fastener. The straighter handle design resists spring and turns nuts easier.