Spi MS160712143 Inside Micrometer 0.2000-0.2400 in

Product Description

The SPI MS160712143 is a mechanical inside micrometer designed for precise internal bore and hole measurements. It covers a measurement range of 0.2000 to 0.2400 inches with a graduation and accuracy of 0.0001 inches, making it suitable for close-tolerance inspection work. The ratchet stop thimble provides consistent measuring pressure, reducing operator-to-operator variation. A chrome finish protects the instrument against corrosion in shop environments. This tool is used by machinists, metrology technicians, and quality control inspectors who require NIST-traceable measurement results.

The MS160712143 is suited for measuring small internal diameters in precision machining, manufacturing, and inspection applications. With a gage depth of 0.8900 inches, it reaches into bores and ports where standard calipers cannot seat reliably. A setting ring with a diameter of 0.2400 inches is included for zeroing and verification before use. It is appropriate for both shop-floor measurement and calibration lab environments where traceability documentation is required.

Key Features

• Measurement range of 0.2000 to 0.2400 inches for small internal diameter work
• 0.0001 inch graduation and accuracy for close-tolerance inspection
• Ratchet stop thimble ensures repeatable, consistent contact pressure
• NIST traceability certification included for calibration and compliance documentation
• Chrome finish resists corrosion in shop and industrial environments
• Includes one setting ring at 0.2400 inches for instrument zeroing and verification

Compatibility

Designed as a precision inside micrometer for use in standard metrology and inspection workflows where NIST-traceable measurement of small internal bores in the 0.2000 to 0.2400 inch range is required.

Installation Notes

Inside micrometers are used by metrology technicians and precision machinists. Before measuring, zero the instrument using the included setting ring and verify it against a known standard. Keep the measuring faces clean and free of debris to prevent false readings. Store the micrometer in its case away from temperature extremes to maintain calibration stability.