Spi CMS160726110 Screw Thread Micrometer 1 to 2 in

Product Description

The SPI CMS160726110 is a mechanical screw thread micrometer designed for precise external thread measurement across a 1.0000 to 2.0000 inch range. It delivers accuracy to plus or minus 0.0002 inches with a graduation of 0.001 inches, making it a reliable tool for machinists, quality control technicians, and toolroom professionals who need to verify thread pitch diameters to tight tolerances. The ratchet stop thimble provides consistent measuring pressure on every reading, reducing operator-to-operator variation. The unit ships NIST-traceable with a short form certificate of calibration, so it is ready for use in documented inspection environments without additional calibration steps.

This micrometer is suited for mechanical inspection applications where screw thread geometry must be verified to close tolerances. The interchangeable anvil design allows the same frame to be used across multiple thread forms by swapping anvils, extending the utility of the tool across different fastener standards. It is a standard tool in precision manufacturing, aerospace, automotive, and general machining shops. Each unit ships with a case, a short form certificate of calibration, and supporting standards documentation.

Key Features

• Measuring range of 1.0000 to 2.0000 inches for medium to large diameter threaded workpieces
• Ratchet stop thimble delivers repeatable, consistent measuring pressure
• Interchangeable anvils allow adaptation to multiple thread forms with a single frame
• Graduation of 0.001 inches with accuracy to plus or minus 0.0002 inches
• NIST-traceable calibration certificate included for use in controlled inspection environments
• Includes protective case and standards documentation

Compatibility

Designed as an OEM-style precision measuring tool compatible with standard screw thread micrometer anvil sets. Confirm anvil thread form compatibility before use on specific thread standards.

Installation Notes

This instrument is handled and stored by metrology or quality control personnel, not installed in a system. Before use, verify the micrometer reads zero correctly at the lower end of its range using the appropriate setting standard. Store in the included case away from temperature extremes and contaminants. Follow your facility calibration interval policy to maintain NIST traceability documentation.