Jon, Starrett makes them but I would hardly call them precision.
Brown&Sharpe used to make a nice leveling fixture. It was a table that
was approx. 6" sq. and had leveling screws. I searched the net but I can't seem
to find an example, maybe they no longer make them.
I think they would work very well but they won't hold enough weight
for what I have in mind. At this point I see very little option except
to spend huge money ($300 each) for three Mitutoyo Series 7 Micro
San Diego, CA
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