Mitutoyo 422-330-30 Electronic Blade Micrometer

Product Description

The MITUTOYO 422-330-30 is an electronic blade micrometer designed for precision measurement in tight, narrow grooves, slots, and keyways where a standard micrometer anvil cannot reach. It measures up to 1 inch (25.40 mm) with a resolution of 0.00005 inches (0.001 mm) and an accuracy of 0.000150 inches (0.0030 mm). The non-rotating spindle and ratchet thimble deliver consistent, repeatable gaging force across measurements. Built with a satin chrome finish and steel blade components, this tool is suited for use by machinists, quality control technicians, and precision measurement professionals on the shop floor or in inspection environments.

The 422-330-30 is used in applications where narrow blade geometry is required to access recessed features, thin slots, and undercut profiles. The blade thickness is 0.0295 inches (0.75 mm) with a blade depth of 6.50 mm and a throat depth of 31.00 mm, allowing access to features that standard outside micrometers cannot measure. Data output capability makes it compatible with SPC data collection systems. It ships with a plastic case and one SR44 battery installed, ready for immediate use in production or inspection settings.

Key Features

• Electronic readout with 0.00005 inch (0.001 mm) resolution for high-precision measurement
• Accuracy of 0.000150 inches (0.0030 mm) across the full 1 inch measurement range
• Blade thickness of 0.0295 inches (0.75 mm) enables access to narrow grooves and slots
• Non-rotating spindle protects workpiece surface finish during measurement
• Ratchet thimble provides consistent measuring force to reduce operator error
• Data output port supports SPC and external data collection systems
• Satin chrome finish on steel anvil and spindle for durability and corrosion resistance

Compatibility

Designed as an OEM-specification electronic blade micrometer for precision measurement applications requiring narrow-blade geometry and data output capability.

Installation Notes

Blade micrometers require no permanent installation and are used as handheld measurement instruments. Before use, verify zero calibration with the spindle fully closed per standard micrometer qualification procedures. Handle blade components carefully to avoid nicking the thin blade faces, as damage will affect measurement accuracy. Battery replacement uses a standard SR44 cell; power down the instrument before replacing the battery.