Jeff Dax

Jeff Dax founded EMI Gage in 1994 as an independent supplier of calibration, support, repair, and accessories for measuring instruments. Following his service in the US Army and earning his B.S. in Electronics Engineering, he has supported a wide range of measurement instruments, from dial indicators to CMMs. EMI Gage focuses on surface texture, form, contour, and roundness gages for industries including automotive, aerospace, optics, bearings, and medical devices. For more information, email Jeff at [email protected].

Articles

ARTICLES

Figure 1 hemisphere standard
Measurement

Beyond Calibration: What a Calibration Sticker May (And May Not) Tell You

While calibration has been with us as long as gages, the concept of a third party performing regular calibrations is relatively recent.
Mike Zecchino Jeff Dax Mark Cobb
August 30, 2025

Gages need calibration, but an annual calibration sticker can mislead non-experts. In addition to regular calibration, proper maintenance, operation, and frequent result verification are crucial. The best practices outlined in this article will help ensure reliable measurements during and between calibrations.


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