Mitutoyo 103-142-10 Mechanical Outside Micrometer

Product Description

The MITUTOYO 103-142-10 is a mechanical outside micrometer designed for precise linear measurement in machining, toolroom, and inspection environments. It delivers a graduation of 0.01 inches and an accuracy of 0.0001 inches, making it suitable for close-tolerance work where reliable, repeatable readings are required. The micrometer features solid carbide measuring faces on both the anvil and spindle, extending service life under regular workshop use. A ratchet stop thimble provides consistent measuring force, reducing operator-to-operator variation. The frame carries a hammertone baked enamel coating and is built around a lightweight workshop design. A standard reference bar is included for calibration verification.

This outside micrometer is intended for use in manufacturing, toolrooms, quality control, and maintenance operations. It is suited for measuring external dimensions of parts, shafts, stock, and components where hand-tool-level precision is required. The solid carbide contact faces make it practical for repeated use on hardened or abrasive materials. The throat depth of 90 millimeters and a spindle diameter of 6.35 millimeters define the physical working envelope for part fitment and access.

Key Features

• Graduation of 0.01 inches for direct reading of close-tolerance dimensions
• Accuracy of 0.0001 inches for high-precision measurement applications
• Solid carbide anvil and measuring face for extended wear resistance
• Ratchet stop thimble ensures consistent, repeatable measuring force
• Hammertone baked enamel frame finish for durable workshop use
• Includes standard reference bar for calibration verification

Compatibility

Designed as a standard mechanical outside micrometer for general external measurement tasks in toolroom, manufacturing, and inspection applications.

Installation Notes

Outside micrometers are used by machinists, metrologists, and quality control technicians and require no permanent installation. Before use, clean the measuring faces and verify calibration against the included standard bar. Do not overtighten the thimble — rely on the ratchet stop mechanism to apply correct measuring force. Store the instrument with a small gap between the anvil and spindle to prevent thermal stress on the frame.