Reticle Grid 3mm Squares 25 Total

KR-427 glass eyepiece reticle. Grid 15mm x 15mm. 25 squares total (5x5). Diagonal = 21.21mm. Available in a variety of diameters, select below when ordering. Your choice of plain grid or labeled grid with numbers (1-5) vertical and letters (A-E) horizontal. Select below when ordering.

Each Square = 3mm when using 1x objective
Lines: Chrome deposition
Chamfer: 0.010" - 0.020"
Flatness: 2 waves or better
Centering: Within 0.005"
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.