Bob Daun wrote:
I have used my chuck for quite awhile but I was just wondering why there is
a threaded hole in the back end of the adaptor (the side facing the
headstock when mounted). The threads in the hole are quite fine but there
is nothing in the hole. If I shine a flashlight into the hole I can see the
threads from my headstock. Is this meant to use as and additional hold
down? I would hesitate to do that as it would ruin the headstock threads.
Any thoughts on this?

I believe that hole is for putting a grub screw in to hold the chuck on
when turning in reverse. I'm not sure, but I think some spindles have a
flat at that spot. Mine doesn't, but I don't have a Oneway lathe...

....Kevin
--
Kevin Miller
http://www.alaska.net/~atftb
Juneau, Alaska
Registered Linux User No: 307357