Reticle 35mm English Square Grid, Scale and Hole Gauge This multifunction reticle allows for accurate measurement of lengths, diameters, and X-Y position. The pattern line width is 0.001” ±.0001”, with an overall accuracy of ±0.00004”. The pattern is on the contact surface, right reading looking through so that the object can be measured directly.Pattern: Holes: 0.01” - 1.00” in 0.10” increments. 1/64”, 1/32”, 1/16”.Grid: 0.5” X 0.5” in 0.05” squares. Horizontal marked in 0.005” increments, numbered every 0.05”.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