Spi CMS141103003 Micrometer Calibration Standard 125mm

Product Description

The SPI CMS141103003 is a spherical end micrometer calibration standard designed for verifying and calibrating outside micrometers in precision measurement applications. With a maximum length of 125mm and an accuracy of 0.0025mm, this calibration standard provides a reliable reference for maintaining micrometer accuracy in tool rooms, calibration labs, and production environments. The part ships calibrated and includes a heat insulating handle to prevent thermal expansion from body heat affecting the measurement reference during use. Machinists, metrologists, and quality technicians rely on this type of standard to satisfy calibration intervals and traceability requirements.

This calibration standard is suited for use in machine shops, manufacturing facilities, and inspection departments where outside micrometers require periodic verification. The spherical end geometry allows consistent contact point engagement when checking micrometer anvil and spindle alignment. The included heat insulating handle is a practical requirement in any calibrated measurement environment, reducing operator-induced thermal error during the calibration process.

Key Features

• 125mm maximum length provides a full-range reference for standard outside micrometers
• Spherical end design ensures repeatable, consistent contact with micrometer measuring faces
• Accuracy of 0.0025mm meets precision calibration requirements
• Ships calibrated, ready for immediate use as a reference standard
• Heat insulating handle minimizes thermal expansion error from hand contact

Compatibility

Designed for use with outside micrometers requiring a spherical end calibration reference. No specific micrometer model compatibility was provided by the manufacturer for this part.

Installation Notes

This calibration standard is handled and used by calibration technicians or quality personnel, not installed in a mechanical system. Store the standard in its case when not in use to protect the reference surfaces. Always hold the standard by the heat insulating handle during use to avoid dimensional changes caused by body heat. Calibration records and traceability documentation should be maintained in accordance with applicable quality system requirements such as ISO 9001 or ISO/IEC 17025.