I've got one mini Kelton hollower, bought along with an odd lot of miscellaneous tools, that I adore. Mine's kind of an odd curve, possibly an early version, so any shape from straight-ish to acute curve would be welcome. The minis have the 5/16" shank, and that's plenty big enough for me. If you've got some you purchased on a whim and never use, I can give them a good home.
Kalia
Kalia