Spi CMS160726118 Inside Micrometer Set Chrome

Product Description

The SPI CMS160726118 is a mechanical inside micrometer set designed for precision internal bore and diameter measurements. It features a ratchet stop thimble and carbide measuring surfaces for consistent, repeatable readings in demanding shop and field environments. The set achieves an accuracy of 0.0002 inches and includes a minimum measurement range starting at 2.0 inches. Self-centering contact points reduce operator error during measurement. The chrome finish resists corrosion and wear. This set is calibrated and ships with NIST traceability certification, making it suitable for quality-controlled inspection work. Licensed metrology technicians, machinists, and precision maintenance professionals are the primary users.

This inside micrometer set is used for measuring internal diameters in bores, cylinders, housings, and similar features where precise internal dimensions are required. It is suited for both production floor inspection and toolroom applications. The ratchet stop thimble provides controlled measuring force, reducing the chance of over-tightening and measurement error. The set covers a measurement range starting at 2.0 inches and can be extended using the included extension rod. The two included setting rings, with diameters of 2.5 inches and 3.5 inches, allow field calibration verification without returning to a standards lab.

Key Features

• Carbide measuring surfaces for extended wear resistance in production environments
• Ratchet stop thimble delivers consistent measuring force across readings
• Self-centering contact points promote accurate alignment inside bores
• Calibrated with NIST traceability certification included
• Includes 1 extension rod, 2 setting rings, and a spanner wrench in a fitted case
• Chrome finish provides corrosion resistance for long service life

Compatibility

Designed as a general-purpose inside micrometer set for internal diameter measurement applications in machining, maintenance, and precision inspection environments.

Installation Notes

This instrument is handled and serviced by machinists, metrologists, and precision maintenance technicians. Before use, verify calibration against the included setting rings and document results per your quality management procedure. Store the set in the fitted case when not in use to protect the measuring surfaces. Do not apply excessive force when seating the extension rod or thimble assembly.