Spi MS160712016 Micrometer Calibration Standard 16 in

Product Description

The SPI MS160712016 is a spherical end micrometer calibration standard designed to verify and maintain the accuracy of micrometer measuring instruments. Measuring 16 inches in length, this calibration bar holds accuracy up to 0.0002 inches, making it suitable for precision measurement environments where traceability and instrument verification are required. A heat insulating handle is included to prevent thermal expansion from affecting the standard during use, which is a critical consideration when working with high-precision gauging tools. This standard is intended for use by calibration technicians, quality control personnel, machinists, and metrology professionals.

This calibration standard is used in industrial, manufacturing, and metrology lab environments where micrometer instruments must be regularly checked for accuracy and calibration drift. The spherical end geometry provides consistent and repeatable contact points when checking micrometer anvil and spindle alignment. It is well suited for shops and facilities that require periodic verification of outside micrometers as part of a quality management or ISO compliance program.

Key Features

• 16-inch length accommodates larger micrometer range verification
• Accuracy up to 0.0002 inches for high-precision calibration work
• Spherical end shape ensures consistent, repeatable contact during measurement
• Pre-calibrated from the manufacturer for immediate use
• Includes heat insulating handle to minimize thermal expansion errors during handling

Compatibility

Designed for use with micrometers. Suitable as an OEM-style calibration reference standard for outside micrometer instruments requiring verification across a 16-inch range.

Installation Notes

Calibration standards should be handled using the included heat insulating handle to avoid transferring body heat to the bar, which can introduce measurement error. Store the standard in its protective case when not in use and allow it to acclimate to the ambient temperature of the measurement environment before use. Verification procedures should follow applicable metrology standards and facility quality protocols. Recalibration of this standard should be performed at intervals consistent with your quality management system requirements.