KR-539 Concentric circles reticle (30 circles) with diameters equal 0.005" - 0.150" with crossline. (L/W = 0.0003" - 0.0004") Numbered 5, 10, 15, 20, 25, and 30 every 5th circle. Learn how to make accurate measurements when using your reticle here and learn about calibrating your microscope here. Reticle is available in a number of different diameters, select below when ordering.
Diameters: 0.005" - 0.150"
Lines: Chrome deposition
Chamfer: 0.010" - 0.020"
Flatness: 2 waves or better
Centering: Within 0.005"
Tolerances: Unless otherwise stated +/-0.0002" (+/-5 microns)
Glass Thickness: 1.5mm+/-0.2mm
Surface Quality: 20/10
Parallelism: 2 min.
NOTE: This is a special order product. Please allow 2-3 weeks for delivery. This item is not returnable.