Features and Benefits: . Quickly removes and installs fan clutch when repairing the water pump or fan clutch. Does the job much faster and easier than conventional fan clutch wrenches. No holding wrenches necessary. Use with an air hammer Set Includes: . 43370 handle. 43380 32mm driving wrench. 43390 36mm driving wrench. 43410 1-7/8" driving wrench. 43420 2" driving wrench. 43430 7/8" driving wrench. 43440 40mm driving wrench. 43530 47mm driving wrench.