The WET FILM THICKNESS GAUGE is to measure the ink's wet film thickness.
The gauge is made by 3 rings.
The center ring is smaller than the outer 2 rings and is eccentric so that when it is rolled on a wet paint, the operator can read the scale when the center ring touches the painted surface.
[Scale]
0 to 25 µm, 0 to 50 µm, 0 to 100 µm, and 0 to 200 µm (Scale 20 Divisions)
