Three fiducials with solder-stop opening are placed asymmetrically in the border (⌀ fiducial 1,5mm; ⌀ solder-stop opening 3mm).
Milling:
The value for the border is the remaining material, e.g. 10mm. Your panel size is increased by 12mm, as a milling path of 2mm is added.
Scoring:
Specialty of milling not relevant.
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