Mitutoyo 422-370-30 Electronic Outside Micrometer 1 in

Product Description

The MITUTOYO 422-370-30 is a blade-type electronic outside micrometer with a 1-inch measuring range, designed for precision dimensional inspection in trade and industrial environments. It delivers a resolution of 0.00005 inches and an accuracy of 0.000150 inches, making it suitable for tight-tolerance work on shafts, fittings, and machined components. The measuring faces are carbide tipped for extended service life. The non-rotating spindle design prevents workpiece marring and holds alignment during measurement. Licensed machinists, pipefitters, and HVAC service techs use this tool wherever precise OD measurements are required.

The 422-370-30 is suited for workshop, field service, and light industrial inspection applications. Its IP54 dust and splash resistance rating makes it practical in shop environments where coolant mist, fine debris, or condensation is present. The ratchet stop thimble provides repeatable measuring force to help ensure consistent readings across multiple measurements. A 1.25-inch throat depth accommodates a range of workpiece geometries. The unit ships with a battery installed and a plastic carrying case.

Key Features

• Blade micrometer type for measuring narrow grooves and hard-to-reach features
• 0.00005-inch resolution for high-precision measurement tasks
• Carbide tipped measuring faces resist wear during repeated use
• Non-rotating spindle protects workpiece surfaces and maintains repeatability
• IP54 rated for resistance to dust ingress and water splashing
• Ratchet stop thimble delivers consistent, controlled measuring force
• Includes SR44 battery and plastic storage case

Compatibility

Designed as a precision OEM-style electronic outside micrometer for general dimensional inspection applications requiring a 1-inch measurement range.

Installation Notes

This instrument is handled and calibrated by metrology technicians, machinists, or qualified service personnel. Before use, confirm the unit is zeroed per standard micrometer calibration procedure with the faces clean and fully closed. Avoid storing the micrometer with the faces clamped tight, as thermal expansion can affect calibration. Keep measuring faces free of chips and debris to preserve accuracy.