The Ranger Paul entity posted thusly:

Larry,

Transfer punches work like magic to reproduce hole pattterns from one thing to another precisely.

I didn't (and still don't) see how I could use a transfer punch. The
problem was that the router base had a proprietary sized hole in it,
so I couldn't use the base itself as a template, because there was no
way to accurately centre it.

This left using the router itself, complete with a pilot bit, to
centre it using the Freud guide bushing mounted in the table base. But
with the router in place, I could not see the holes, as they are
tapped, blind holes in the router, and as such, I did not have a place
to put the transfer punches.

Thanks for the link, though. I don't have any transfer punches.