Reticle 35mm Calibration Rule This English Thickness Gage Reticle is very suitable for critical line width and spacing measurements. The pattern contains 16 line widths from 0.001” to 0.016” in 0.001” increments. The pattern line width is 0.001” ±0.0001”.The pattern is right reading looking through the glass so that the pattern can be in direct contact with the object to be measured. The Reticle Pattern is very durable, double layer, deposited evaporative Chrome/Chrome Oxide, for a reflectivity of less than 5% looking at the pattern. The Patterns on all Reticles manufactured by Max Levy are replicated from Precision Chrome on Glass Tooling under clean room conditions. Click here to download drawing 35mm Compatibility Chart Full Compatibility Chart