Mitutoyo 167-143 Micrometer Calibration Standard

Product Description

The MITUTOYO 167-143 is a flat end micrometer calibration standard used to verify and maintain the accuracy of outside micrometers. Measuring 3 inches in length and calibrated to an accuracy of 0.0001 inches, this reference standard provides a traceable measurement baseline for shop-floor and field calibration work. It includes a heat insulating handle, which prevents thermal expansion from body heat from affecting the reference dimension during use. Metrology technicians, quality control personnel, and precision machining professionals rely on standards like this one to keep measuring instruments within specification.

This calibration standard is designed for use with outside micrometers in precision measurement environments including machine shops, manufacturing facilities, and maintenance shops. It is appropriate for any setting where dimensional accuracy must be confirmed before or during production runs, during scheduled instrument calibration cycles, or after a micrometer is repaired or dropped. The flat end design ensures consistent contact with the micrometer anvil and spindle faces during the calibration check.

Key Features

• Calibrated reference standard with accuracy up to 0.0001 inches
• 3-inch length covers a common outside micrometer range
• Flat end design ensures repeatable contact with anvil and spindle faces
• Includes heat insulating handle to prevent thermal growth during handling
• Factory calibrated for immediate use as a reference standard

Compatibility

Designed for use with outside micrometers requiring a 3-inch calibration reference standard.

Installation Notes

Handle the standard only by the heat insulating handle to prevent body heat from altering the reference dimension. Before performing a calibration check, allow the standard and the micrometer to reach the same ambient temperature, typically in a controlled environment near 68 degrees F per metrology best practices. Clean the contact faces of both the standard and the micrometer anvil and spindle with a lint-free cloth before use. Calibration work should be performed by qualified personnel following applicable measurement and calibration procedures.