A tool like that is useful to old engine collectors like myself. I have 81 small engines at this moment with dates ranging from 1929 to about 1982. Most are old cast iron engines like Briggs & Stratton, Maytag, Clinton, Johnson Iron Horse, Reo, Continental, Fairbanks Morse and Tecumseh. I have been putting together a pretty good collection of tools for working on my old engines.
EvilDr235