The pcb cutting pattern cut process is shown on
http://home.online.no/~la8ak/c21.htm as note 21.17

will try to write some better understandable text later (I have some
problems since there is two different parts here with the name "drill"
in English, and many other in other situations....

73, Jan-Martin, LA8AK
---
J. M. Noeding, LA8AK, N-4623 Kristiansand
http://home.online.no/~la8ak/c.htm