Mitutoyo 167-147 Flat End Micrometer Calibration Standard

Product Description

The MITUTOYO 167-147 is a flat end micrometer calibration standard designed for verifying and calibrating outside micrometers. At 7 inches in length, it provides a reference measurement surface accurate to 0.00015 inches, making it suitable for precision metrology applications where measurement integrity must be confirmed. The unit ships calibrated and includes a heat insulating handle, which allows the technician to hold the standard without transferring body heat to the gauge body — a critical detail when working at tolerances this tight. Metrology technicians, tool room machinists, and quality control professionals in manufacturing and fabrication environments are the primary users of this standard.

This calibration standard is used to verify the accuracy of outside micrometers before or during inspection operations. It is appropriate for tool crib calibration routines, incoming inspection setups, and quality assurance programs in manufacturing facilities, machine shops, and precision fabrication environments. The 7-inch length makes it well suited for checking larger-range outside micrometers used on shafts, bores, and structural components. The heat insulating handle is particularly useful during bench calibration where the standard is handled repeatedly over a work session.

Key Features

• Calibrated at the factory with accuracy to 0.00015 inches
• 7-inch working length for use with larger outside micrometer ranges
• Flat end contact faces for consistent, repeatable reference measurement
• Includes heat insulating handle to prevent thermal expansion errors from hand contact
• Single-piece construction suitable for ongoing calibration program use

Compatibility

Designed for use with outside micrometers requiring a flat end reference standard for calibration and verification checks.

Installation Notes

This standard is handled and used by metrology technicians or quality control personnel — no power tools or utilities need to be shut down prior to use. Always allow the standard and the micrometer under test to thermally stabilize at the same ambient temperature before taking measurements; even minor temperature differences can introduce error at this accuracy level. Store the standard in its case when not in use to protect the reference surfaces from contamination or damage. Follow your facility calibration program and applicable standards such as ASME B89 for formal gauge calibration procedures.