Spi CMS150902002 Micrometer Calibration Standard 25mm

Product Description

The SPI CMS150902002 is a spherical end micrometer calibration standard used to verify and calibrate outside micrometers in precision measurement applications. The standard measures 25mm in maximum length and delivers an accuracy of 0.0012mm, making it suitable for quality control and shop-floor verification work. It ships with a heat insulating handle that prevents heat transfer from the technician's hand to the gauge body, which helps maintain dimensional stability during use. Calibrated from the factory, this standard is ready for use upon receipt by metrology technicians, QC inspectors, and precision machinists.

This calibration standard is designed for use with outside micrometers in precision measurement environments such as machine shops, calibration labs, and manufacturing quality departments. The heat insulating handle is particularly useful during bench verification routines where the standard is held for extended periods. The spherical end geometry provides consistent point contact, reducing the effect of misalignment during the calibration check process.

Key Features

• 25mm maximum length for calibrating short-range outside micrometers
• Accuracy of 0.0012mm for precise verification and calibration work
• Spherical end geometry ensures consistent contact point during measurement
• Includes heat insulating handle to prevent thermal expansion from hand contact
• Factory calibrated and ready to use out of the package

Compatibility

Designed for use with outside micrometers requiring a 25mm calibration reference standard.

Installation Notes

Calibration standards should be handled by the insulating handle only to avoid thermal growth from hand contact affecting the reference dimension. Store the standard in its case when not in use to prevent surface wear or damage to the reference faces. Calibration verification should be performed in a temperature-controlled environment when high-accuracy traceability is required. Periodic recalibration of the standard itself should follow the facility's calibration interval policy and relevant metrology standards.