Watreloo Archery's Little Chippers?

[flint kemper]

Did anyone ever buy or see the little chippers which were made by waterloo archery to taper the nock and point ends of arrow shafts? I remember seeing there ad's in old TBM's and wondering what that system was, never heard much about them and wondered? Waterloo makes the feather choppers nad also made some of the first gasket lacquer if I remember correctly. Thanks Flint