1. Works on all models with sprocket holes larger than 12mm (1/2 inch) & hole separations from 19mm to 190mm (3/4 inch -7.5 inch). 2. Made of steel for durability, hold the camshaft stationary during removal and installation of sprocket retaining nuts and bolts 3. For timing belt changes, cam seal replacement, cam gear removal, camshaft pulleys installation etc. 4. Using this sturdy tool to hold camshaft sprockets stationary to remove the bolts, which will work well to hold the pulley to stop it from spinning while tightening/loosening the bolt. 5. Material: steel