Diesella Wet film comb 25-3000 um (aluminium) mm/inch scale

For control of coating / paint thickness that is still wet. Application: Select a suitable measuring range according to the expected coating. Place the test comb on the workpiece, check that the outer teeth on the comb have good contact with the surface and look at the measuring scale which tooth has contact / touches the surface. The measure is between this tooth and the next shorter one which has no contact in my. Clean after use.