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.
Elcometer 3238 Long Edge Wet Film Combs (Stainless Steel)
Each comb has 24 measurement steps (teeth) providing a more accurate wet film thickness value.