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Reticle Untwinned Grain Counting 3-10 ASTM E112

SKU: KR808I
Price: $105.00

KR-808I glass eyepiece untwinned grain counting reticle (3-10). For use with a 10x objective lens. This reticle was created for ASTM Methods E 112, PCN 12-501120-10. Plate 1 B, Untwinned Grains (Flat Etch) 100x. Reticle is available in a number of different diameters, select below when ordering.

Lines: Chrome deposition
Chamfer: 0.010" - 0.020"
Flatness: 2 waves or better
Centering: Within 0.005"
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.

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