On Mon, 27 Aug 2007 20:42:47 -0400, Michael Horowitz
wrote:

I find myself having to enlarge a bushing's ID by 1/16ths to 3/8ths.
My concern is I don't know how to insure the 3/8" bit is aligned with
the axis of the hole. Centered is good, but I'm more concerned with
the alignment.
Suggestions? - Mike

I went to the machine shop around the corner with the intent of
picking their brains. He took one look at it and said "push out the
old bushing and push this one in". The new bushing had the ID I was
looking for. Total time - :15 - Thanks for the replies - Mike