Mitutoyo 167-160 Micrometer Calibration Standard 20 in

Product Description

The MITUTOYO 167-160 is a flat-end micrometer calibration standard designed to verify and maintain the accuracy of outside micrometers in professional metrology and quality control environments. Measuring 20 inches in length and rated to an accuracy of 0.0003 inches, this calibration standard delivers the precision required for tight-tolerance inspection work. The unit ships calibrated and includes a heat insulating handle, which prevents thermal expansion from hand contact from skewing measurements during use. Calibration technicians, dimensional inspection specialists, and quality assurance personnel in machine shops, HVAC manufacturing, and mechanical trades rely on standards like this to confirm instrument performance before critical measurements are taken.

This calibration standard is suited for use in both shop-floor and laboratory settings where outside micrometers require routine verification. It is appropriate for any environment that demands traceable dimensional accuracy, including manufacturing quality control stations, tool rooms, and calibration labs. The included heat insulating handle makes it practical for repeated daily handling without compromising measurement integrity. It is most commonly used alongside outside micrometers to confirm zero error, spindle wear, or anvil condition across the full range of the instrument.

Key Features

• 20-inch length provides a long-range reference for verifying full-travel outside micrometers
• Accuracy rated to 0.0003 inches for high-precision calibration verification
• Flat end construction for consistent, repeatable contact with micrometer anvil and spindle
• Ships pre-calibrated for immediate use in quality control workflows
• Includes heat insulating handle to prevent thermal growth from hand contact during measurement

Compatibility

Designed for use with outside micrometers requiring a long-range calibration reference standard. Specific model compatibility is determined by the measuring range of the outside micrometer being verified.

Installation Notes

Calibration standards are handled and stored by calibration technicians or quality assurance personnel, not installed in the conventional sense. Allow the standard to thermally stabilize in the measurement environment before use, as temperature variation affects dimensional accuracy. Store the standard in its case when not in use to prevent damage to the reference surfaces. Follow your facility's calibration interval procedures and applicable standards such as ASME B89 or ISO 17025 requirements when using this standard for instrument verification.