Reticle 10 Concentric Circles 0.3mm - 3mm

KR-520 Concentric circles reticle (10 circles) with diameters equal 0.3mm through 3mm with crossline. Numbered 1-10. 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: 0.3mm, 0.6mm, 0.9mm, 1.2mm, 1.5mm, 1.8mm, 2.1mm, 2.4mm, 2.7mm, 3.0mm
• 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.