The Lisle 3-Piece Fan Clutch Wrench Set is a set of cooling system repair tools designed for automotive use. With a semi-universal fitment type, this set includes three wrenches to help with fan clutch removal and installation. The product is manufactured by Lisle and carries the manufacturer part number 43600. It is essential for maintaining the cooling system of vehicles, especially for car enthusiasts and mechanics who need precise and effective tools for their work. Additionally, it is important to note the California Prop 65 Warning associated with this product, indicating potential health hazards.