Mitutoyo 167-142 Flat End Micrometer Calibration Standard

Product Description

The MITUTOYO 167-142 is a flat end micrometer calibration standard designed to verify and maintain the accuracy of outside micrometers. With a maximum length of 2 inches and accuracy up to 0.0001 inch, this gauge block-style reference bar provides a reliable dimensional reference for calibration checks in shop, field, or laboratory settings. The included heat insulating handle minimizes thermal expansion from hand contact, which is critical when working to four-decimal-place tolerances. Metrology technicians, tool crib personnel, and quality control inspectors rely on this type of standard to confirm that measuring instruments are reading within specification before use.

This calibration standard is intended for use with outside micrometers in precision measurement applications. It is well suited for manufacturing environments, machine shops, and maintenance facilities where dimensional accuracy of measurement tools must be verified on a routine basis. The 2-inch nominal length covers a common micrometer range and supports calibration verification without sending instruments off-site for every interval check.

Key Features

• 2-inch nominal length for direct use with 1-2 inch outside micrometers
• Accuracy up to 0.0001 inch for high-precision calibration verification
• Factory calibrated for immediate use as a reference standard
• Includes heat insulating handle to reduce thermal growth from hand contact
• Flat end design for consistent, repeatable contact with micrometer anvil and spindle

Compatibility

Designed for use with outside micrometers requiring a 2-inch calibration reference standard. Suitable for instruments that measure in the 1-to-2-inch range.

Installation Notes

Calibration standards should be handled by the insulating handle whenever possible to prevent body heat from affecting the reference dimension. Allow the standard to reach thermal equilibrium with the measuring environment before use, particularly when moving between temperature-controlled and non-controlled areas. Store in its protective case when not in use to protect the reference surfaces from damage or contamination. Calibration and verification work of this nature is typically performed by metrology technicians or qualified QC personnel following applicable measurement standards.