Mitutoyo Micrometer Adjustment

How far out are you and at what end of the range? Is the discrepency with jaws closed (0.0000) or over the supplied maximum 1.000 gage, or some intermediate gage block size? I typically give it 1-click of closed clamping pressure over a sheet of paper & gently pull the paper to clean the jaw faces, then immediately register zero after that. Generally it stays that way for a long time. Usually dirt is the culprit or if you were ever around a magnet (ask me how I know).

Your clutch may be getting out of whack but try & come up with a consistent method like 1-click, 2-clicks of tension. Also make sure whatever you are measuring is at the same ambient/part temperature & reliable gage quality datum surfaces. With all those zeros you are in the range where those are actual, measurable deviations, assuming the mic is reading as it should,
 
Back
Top