Fitment:It could be used on many shaft/seal application, depending on user imagination and available space for getting to the seal Features: (1) Made from high quality steel and iron to ensure high strength, and comfortable handle ensures convenient operation. (2)Removes Cam Shaft and Crank Shaft Seals Without Damage to the Shaft. (3)Engage the adjustable hook behind the seal, brace the push rod against the engine head and push the handle to remove the seal. (4) The little hook blades are really operating at the extent of their metallurgical capability on this tool and it shows in how well they hold up. No need wasting your time for home made version. To operate this tool, all you need to do is : Locate the seal you want to removeRemove anything that will block/impede its removal (i.e. cam pulleys, crank pulleys, etc)Take the 58430 pulley & insert the end piece (small black hook) into the seal. Adjust the silver bar so it is positioned against anything solid. And pry the old seal right out! Package included: 1pcs Shaft Type Seal Puller ( It comes with a spare hook )