I don’t have a regular lathe. When I have to turn a wax I use a #30
handpiece clamped in a drill press vise. Works OK, not ideal, no
tailstock, no tool rest. I cut 3 samples of wide bands, 8-10mm to
show for approval of final width. It was laborious to try to get a
uniform fingerhole, where the surfaces are parallel, no taper. On
something that wide its a consideration since the outside
configuration is dependant on the inside dimensions. Without a tool
rest its all freehand, accuracy not so good because you can’t see or
measure the far end of the hole. I used various cutting tools but it
was hit or miss, and missing three times is a pain. So I land the job
and have to make a good wax.
Then I remembered I still had a set of carpenters’ spade bits in my
toolbox from when I did the fitout 3 years ago. Why I kept that in my
jewelers’ toolbox I dunno, too lazy to bring it home maybe. This
thing cut like a dream, self centering, pretty close to needed finger
size, no chattering, waste wax not nearly as messy. Because it has a
long shank you have something substantial to hold onto and just
eyeballing the alignment got me within 1/4 size side to side. I’d
call that parallel enough.
Great, I’m a human tailstock.