Calvert Racing adjustment wrenches make it easy to adjust your CalTracs traction bar system. The wrenches have 1-1/8″ opening for adjusting links and jam nuts. The 6″ handle features an offset/angled head that helps in low clearance applications. Wrenches are constructed of heat treated 4340 chromoly for durability and longevity and finished in a corrosionresist platingwith a rubberized coated handle.