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Micro-Metrics OG214 Tooke Gauge is used to measure directly the thickness of each layer of coating, as well as total coating thickness. A V-shaped groove is made through the paint film and into the substrate. Coating and substrate are observed through a 50-power illuminated magnifier fitted with a measuring scale. Enhanced dual-measure scope features a reticle marked in mills and microns.
The OG214 Tooke Gauge features an injection-molded, high-impact polycarbonate plastic body, suitable for most applications where the gauge will not be exposed to corrosive materials. Precision tungsten-carbide cutting tips are side-mounted with balancing legs to ensure precise alignment of the paint inspection gauge to the surface being examined.
Reticle Specifications:
| Cutting Tip | Maximum Coating Thickness | Precision of Thickness Determinations | One Division on the reticle scale represents: |
| 1x | 100 mils 2500 µm | ± 0.25 mils + 5 µm | 1.0 mil 20 µm |
| 2x | 20 mils 500 µm | 0.13 mils + 2.5 µm | 0.5 mil 10 µm |
| 10x | 3 mils 75 µm | 0.025 mils + 0.5 µm | 0.1 mil 2 µm |
