Feeler Gauge Calibration - What tolerance is used for calibrating feeler gauges?

John Predmore

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Commercial measuring devices are often calibrated by comparing to the manufacturer's specification.
For a feeler gauge, you might find tolerances on the manufacturer's website, such as
Thickness Gages Series 950,184.

The technician performing calibration should check edges and surfaces under magnification for wear or damage, and check the thickness at various points around the perimeter.

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