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The SPI MS170310026 is a four-piece spare part kit designed to maintain and service outside micrometers. The kit covers common wear and replacement components needed to keep a micrometer functioning accurately in the field or in a calibration environment. It includes a battery case, locking screw, ratchet stop, and wrench — the components most frequently replaced during routine micrometer upkeep. At 0.11 pounds, the kit is compact and easy to store in a tool chest or service bag. Metrology technicians, quality control professionals, and precision machinists are the primary users.
This spare part kit is intended for use with outside micrometers. Outside micrometers are standard tools in machine shops, manufacturing facilities, and dimensional inspection environments. Having replacement components on hand reduces downtime when a locking screw strips, a ratchet stop wears, or a battery case cracks. The kit supports instruments with a maximum measurement capacity of 12.0 inches, making it broadly applicable across a range of outside micrometer sizes used in production and inspection settings.
Designed for use with outside micrometers. The included components are suited for instruments with a maximum measurement capacity of 12.0 inches.
Replacement of micrometer components should be performed by a qualified metrology technician or a machinist familiar with precision instrument service. Before replacing internal components such as the locking screw or ratchet stop, ensure the micrometer is clean and free of debris. After servicing, verify calibration against a known standard before returning the instrument to service. Consult the instrument manufacturer's service documentation for component-specific procedures.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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