Pete S wrote:

Has anyone ever bored out the headstock of an Atlas 10" or 12"
lathe? I
know it would ruin the #3 Morse taper in the headstock, but I
seldom use
it.
Well, if you check out the meat available, I think you'd
decide any serious boring will weaken the spindle too
much. I wouldn't do it unless you wanted to pass 3/4"
stock through the back. Generally, it needs justy a HAIR
more clearance.

Jon

Jon