This set is designed to remove and install the fan clutch and rotate or restrain the camshaft pulley. The pulley has an adjustable jaw spread from 40-220mm. The long handle makes it easier to hold the pulley when tightening or loosening retaining bolts. All components are made from chrome vanadium steel, with a satin chrome protective finish for the pulley and black phosphate for the adaptor pins and bolts. The pins are interchangeable. Supplied in a sturdy plastic storage case.