Coating thickness gauge measures all coatings on steel or iron substrates as well as all insulating coatings on non-ferrous substrates such as aluminum, copper, brass, zinc or stainless steel. This ferrous/non-ferrous instrument is designed to measure in hard to reach areas with a range of 0 - 80 mils or 0-200 mils. The gauge has a non-wearing ruby probe tip and a digital display.
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