Dumb question on the drilling of holes

Forgive me this seemingly dumb question, but how does a person "drill"
accurately placed holes under CNC control without first center-punching
them.

I currently use a center drill to start the hole ( for deep holes ) or
just mill the hole via G02/03 command for shallow ones.

But it occurs to me that there's got to be a better way. Are "spotting
drills" that better way ?

Thanks in advance for any thoughts.

Alan

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Alan Rothenbush | The Spartans do not ask the number of the
Academic Computing Services | enemy, only where they are.
Simon Fraser University |
Burnaby, B.C., Canada | Agix of Sparta