Originally Posted by
MtGun44
For boolit diameters, the .0001 micrometer is required. Pretending that the calipers
are actually accurate to tighter than .001 is a fun game, but not connected to reality.
READING the instrument to more accuracy than it can deliver is a silly waste of time,
although some claim "I can read it to . . . . . ." whatever.
Enco Tool sells Fowler .0001 reading mics for typically at or under $35 most of the time.
Used Brown & Sharpe, Starrett or Mitutoyo mics on eBay can be good deal. Make sure
it has the last digit vernier to get to .0001
Bill