Universal Pulley Holder & Fan Clutch Set 11pceDurable, heat-treated steel with chrome finish. Removes and installs fan clutches, and rotates or restrains camshaft pulleys on most cars. Soft-grip, ergonomic PVC handle. Adjustable jaw spread and interchangeable pins. Includes 4 x adaptor sizes: 6, 8, 10 and 16mm and tough storage case.