Mitutoyo 103-189 Mechanical Outside Micrometer 12-13 Inch Range .001 Inch Graduation

The Mitutoyo 103-189 is a precision mechanical outside micrometer designed for accurate dimensional measurement in the 12-13 inch range. This professional-grade measuring instrument features a graduation of .001 inch (0.001") for precise readings in machine shops, quality control labs, and manufacturing environments.

Key Features:

• Measurement range: 12-13 inches
• Graduation: .001 inch for precise measurements
• Hammertone baked enamel finish frame for durability and corrosion resistance
• Ratchet stop mechanism ensures consistent measuring pressure for repeatable, accurate readings
• Includes setting standard bar for calibration and accuracy verification
• Satin chrome plated spindle and sleeve

The ratchet stop feature is essential for maintaining measurement consistency by preventing over-tightening and ensuring uniform pressure is applied with each measurement. The included standard bar allows users to verify accuracy and make adjustments as needed. The hammertone enamel finish provides excellent resistance to wear and environmental exposure while maintaining professional appearance.