Skip, just a little advise, spray a little penetrant on all nuts, bolts & clamp screws and
let set for a few days before trying to turn them. if they are rusty, I spray them with
Gibbs Penetrant, let set, tap them with a brass or lead hammer lightly, then respray
them again. let set again. I have had better luck not breaking them this way.
as you know, it is very hard to find original replacements.
old square nuts I have, bolts, none.
sometime in the near future, I will try to get at mine and see how the chisel comes out.
in the back of my head is a guys name that has or had a big collection of ols machines,
if I can find that info, he would be the guy to ask.
Frank