Features and Benefits: Saves significant time and cost in skinning doors Faster than any other method Produces factory like results in one pass One hand operation Patent #6,578,404 Forged and hardened steel crimping head is specially designed to roll the steel flanges over with a minimum of physical effort and leaves the flange smooth without unsightly ripples. Design allows tool to maneuver around inner and outer curves as well as most body design features. Close tolerance design and manufacturing, results in a tool that is incredibly smooth, quiet, and easy to use.