Reticle 26mm Metric Square Grid and Dot Gage This multifunction reticle is useful for linear, X-Y, and dot diameter measurements. 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: 10mm square divided into 0.5mm squares; 10mm scale on horizontal border divided into 100 parts, numbered every 1mm.13 circles: 0.1mm through 1.0mm in 0.1mm increments, 1.5mm, 2.0mm, 2.5mm.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 the drawing. 26mm Compatibility Chart Full Compatibility Chart