Upgrade your mechanic toolkit with the Stanley JFP100 Proto 7 Piece Pneumatic Fan Clutch Wrench Set. This set allows for easy removal and installation of fan clutches when repairing water pumps or fan clutches. With seven driving wrenches included, you can confidently tackle Ford, GM, Chrysler, and Jeep fan clutches. Sizes range from 7/8-inch, 32mm, 36mm, 40mm thin, 1-7/8-inch, 2-inch and 47mm for versatility.