Mitutoyo 422-371-30 Blade Outside Micrometer 1 in

Product Description

The MITUTOYO 422-371-30 is a blade-type electronic outside micrometer designed for precision measurement in tight or narrow grooves, keyways, and recessed features where a standard anvil cannot reach. It delivers a resolution of 0.000050 inches and an accuracy of 0.000150 inches, making it well suited for exacting dimensional inspection work. The non-rotating spindle and ratchet stop thimble ensure repeatable measuring force and consistent contact with the workpiece. IP54-rated for dust and splash resistance, this micrometer holds up in shop environments without sacrificing readout accuracy. Licensed machinists, tool-and-die technicians, and precision metrology professionals are the primary users.

This micrometer is sized for a 1-inch measurement range and is appropriate for detailed inspection tasks in manufacturing, toolroom, and quality control settings. The blade-style measuring faces allow access to narrow slots and shoulders that standard outside micrometers cannot measure. It is equally at home on the shop floor or in a controlled metrology environment. The included plastic case keeps the instrument protected during storage and transport between job sites or inspection stations.

Key Features

• Blade-type measuring faces for access to narrow grooves, keyways, and recessed geometry
• 0.000050-inch resolution for high-precision dimensional readings
• 0.000150-inch accuracy across the full measurement range
• Non-rotating spindle prevents workpiece marking and measurement shift
• Ratchet stop thimble delivers consistent, repeatable measuring force
• IP54 dust and splash resistance rated for shop use
• Powered by one SR44 battery, included

Compatibility

Designed as an OEM-style electronic blade outside micrometer for precision inspection of parts up to 1 inch in outside dimension, particularly where blade-style anvil access is required.

Installation Notes

Blade outside micrometers require no permanent installation and are handled by machinists, quality technicians, or metrology personnel. Before use, clean the measuring faces and verify zero calibration with the spindle fully closed or using the appropriate gauge block. Do not over-tighten the thimble against the workpiece; always use the ratchet stop to apply controlled measuring force. Store the instrument in its provided case away from heat, magnetic fields, and corrosive fluids to maintain calibration integrity.