Etalon writes, "Every micrometer is supplied ready for use and inspected. However, since they might get out of adjustment during transportation, we [Etalon] advise to check the zero-setting before use. We also firmly advise our customers not to dismantle the instruments needlessly. They need only be cleaned using pure benzene and periodically lubricated with a few drops of high quality purified oil. Check the zero-setting as often as necessary. The guarantee does not cover new measuring instruments dismantled by customers." Note: Even though the manufacturer suggests using benzene, it is not considered a safe substance. It is highly flammable and injurious to health if inhaled. Use it at your own risk. As an alternative, try alcohol or a water-based cleaner if you are reasonably sure that you can dry it completely. See also: Calibration and zero-setting instructions. For additional information on micrometers and what can go wrong, please refer to page 29.
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