INTERNATIONALLY ACCREDITED for ILAC-MRA ISO 17025 GAGE CALIBRATION - By ACLASS - An ANSI-ASQ Accreditation Company - Member National Association for Proficiency Testing (NAPT)

Gage Blocks are calibrated using either a laser-based contact instrument, such as the Pratt and Whitney Instruments direct measuring LABMASTER (shown above) or a comparator as shown below.