Would anyone happen to have a copy of the operating instructions for Hermes
CG-4 or CG-5?

I'm also interested in 2B collets, which according to info I've seen, are
unusual in the sense that the drawbar thread is internal instead of external
for a drawtube (3C etc).
I think these were available in sizes from about 1/8" to 1/2" round.

An engraver equipment website lists some new collets but doesn't include any
specs, so they may be the correct ones, at $65 each.

Thanks,
--
WB
..........