The Elcometer 3238 Long Edge Wet Film Combs are wire eroded to provide an accuracy ±5% of marked value or ±3μm (0.12mil), whichever is greater, and are supplied with either Metric or Imperial measurements.
Each comb has 24 measurement steps (teeth) providing a more accurate wet film thickness value.
Inquiry - Elcometer 3238 Long Edge Wet Film Combs (Stainless Steel)