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I have several height gages, which are sent out for calibration annually.
Some are simply used with the scribe that come with it, others are used with a dial indicator to indicate "0".
Since the indicator is only used to indicate 0, and is not used for the measurement per se, do I really need to get the indicator calibrated?

Some are simply used with the scribe that come with it, others are used with a dial indicator to indicate "0".
Since the indicator is only used to indicate 0, and is not used for the measurement per se, do I really need to get the indicator calibrated?
