6140 2-¼" Diameter Mirrored Target
SKU
6140
Flat-to-flat shank width tolerance | To within -1/4 wavelength of light |
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Pattern Accuracy | Outside diameter is concentric to the pattern within 0.001" (0.03 mm) Glass: 2.2498" dia. (+0.0000", -0.0005"), -1/4” thick. The outer diameter of the glass is cylindrical within .0003" (0.008 mm). |