Reticle 3 Concentric Circles 0.20 - 0.40 - 0.60 Inch

KR-521 Concentric circles reticle (3 circles) with diameters equal 0.20" - 0.40" - 0.60" with crossline. Numbered 10, 20 and 30. 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: 0.20", 0.40", 0.60"
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+/-0.1mm
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.