In this part of the world anyway, the term Millwright can mean either:

1) Someone who is not only a fully qualified and trained machinist in
the sense of lathe/mill etc operator, but also trained to set up,
align, and probably recondition and repair machine tools, or

2) Someone who may never have had formal training or any/much
experience as a machine tool operator or any of the theory needed to
be a machinist, but who installs, sets up, and adjusts drive trains,
belts motors pullys, etc for saw mills and other such industiral
equipment.

Same term, but hardly the same skill set.

Mickey


To be honest, I would expect a millwright to know how to make one-off taps
and dies as a matter of course.