Reticle Grid 0.5mm Squares 300 Total Labeled

KR-453 glass eyepiece reticle. Grid 15mm x 15mm. 300 squares total (30x30). Diagonal = 21.21mm. Labeled with letters vertical (A-DD) and numbers horizontal (1-30). Also available with numbers horizontal & vertical. Select below when ordering. Available in a variety of diameters, select below when ordering.

Each Square = 0.5mm 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.