Don’t drill, machine as a pocket using a 1/4" tool.
Test the defaults in a piece of scrap and adjust until things work as expected.
A downcut such as a #251 should make for a nice clean edge.
For rounding see:
Don’t drill, machine as a pocket using a 1/4" tool.
Test the defaults in a piece of scrap and adjust until things work as expected.
A downcut such as a #251 should make for a nice clean edge.
For rounding see: