Originally Posted by
ThermionicScott
Can you add the countersink yourself?
Hmmm... tough to find the right tool to do a good flat bottom counterbore.
One might be able to modify one of these to do a 10mm x 12mm counterbore.
(verify size).
https://www.snappytools.com/product/...ed-twist-drill
One might be able to do it with a 12mm endmill without a guide, but then it would have to be centered perfectly.
12 0MM Carbide End Mill 4 Flute Metric
Use depth limiter on drill press/mill, or set table to limit depth.