Picked up a 1-2" Mitutoyo mic off eBay that of course has a serious calibration issue. I think I can make it usable by being able to rotate the index sleeve in the mic frame, but it really seems to be locked in place, when I try to use the standard mic spanner that comes with every mic ever sold. It doesn't appear that the frame is bent, or that the mic anvil or spindle are otherwise out of square (good gage block mating), but it reads about .0045 too small. I initially thought maybe some...
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