With a low profile of only 0.250", this simple to use wet film thickness gauge can get into places that previously, gauges could not fit.
The Long John's 5" length gives added reach capabilities that defy other gauges. Gauge lands are incremented 0.0005" to 2.5 mils on one end and 1 mil increments from 3 to 7 mils on the other.
The accuracy of each tooth dimension is 10% of the nominal value. |