What Is Zero Error on a Micrometer Screw Gauge?

By Staff WriterLast Updated Mar 25, 2020 7:05:30 AM ET
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The zero error of a micrometer screw gauge occurs when the flat end of the screw touches the stud or anvil, and the gauge reads other than zero. If there is an error, it results in a positive or negative calculation. However, well-calibrated micrometers that are in good condition measure close to zero; and, they do not introduce a noticeable error.