Reticle 21mm Metric Square Grid, Scale and Hole Gauge This Multi-Function Pattern is useful for metric line measurements, hole size measurements and for determining coordinate locations in X and Y and for the evaluation of matrix hole and line patterns. It is also useful as a simple stand-alone pattern for evaluating Machine Vision Camera System Optics for barreling and pincushion distortion.The Pattern is a 20 X 20 Matrix of 0.5mm Squares with a Pattern Line Width of .001”± .0001” (.025mm± .0025mm).The Scale is divided into .10mm increments with Numerals every 1.0mm.The Hole Pattern consists of Metric Hole Diameters that are 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.5, 2.0 and 2.5mm.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 21mm Compatibility Chart Full Compatibility Chart
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