OTC 7818 2-1/8" (54mm) Fan Clutch Holding Tool Conventional wrenches are just too wide for the job of removing the fan clutch assembly on some engines You hold the fan clutch stationary with the clutch holder tool, and turn the fan clutch nut with the special wrench Most wrenches feature a square drive for attaching a breaker bar for extra torque Time savers when replacing water pumps or for any other front engine service in body or repair shops Holding tool size 2-1/8 inch (54 mm)