On Sun, 29 Sep 2013 18:10:05 -0500, Karl Townsend
wrote:

I'm trying to bore a 1" hole 12" to 14" long in a 1.75" square rod
PERFECTLY on center to my CHNC lathe...

Not an easy task. I wouldn't ask if it was easy. OK, a slight
misalignment at the center won't bother, so now I only need to bore
7".

My best idea to get it in perfect alignment is to mount an end mill
just under one inch in the spindle and bore with the square rod
mounted in position on the lathe. Then take the part out and bore to
correct diameter in the mill.

I just searched my stash, found a 5" long by 7/8" EM. I'd sure like
to find a longer one. Anybody have one? Quick search on fleabay, no
joy.

FWIW, I'm trying to gundrill 24" long in a lathe with 12" travel. The
drills mount in a one inch bore.

Karl


You are going to have to drill and then braze /weld on an extension.

Good luck!!

Gunner

"The socialist movement takes great pains to circulate frequently new labels for its ideally constructed state.
Each worn-out label is replaced by another which raises hopes of an ultimate solution of the insoluble basic
problem of Socialism, until it becomes obvious that nothing has been changed but the name.
The most recent slogan is "State Capitalism."[Fascism] It is not commonly realized that this covers nothing more
than what used to be called Planned Economy and State Socialism, and that State Capitalism, Planned Economy,
and State Socialism diverge only in non-essentials from the "classic" ideal of egalitarian Socialism. - Ludwig von Mises (1922)