The Morris Dovey entity posted thusly:

It's actually the kind of job at which CNC machines excel.

They sure do!

I've been wondering why not make a hardboard template using a
countersink bit - then use that template with a vix bit to drill the
actual board? This approach should allow good registration for
repeated use of the template without template wear or damage...

Interesting! A Google search led me to some examples of vix bits. I
had not heard of them before.

Larry