| 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.
They're readily available from many sources as "self-centering" bits. I got a set from Lee Valley, who offer sizes down to 5/64".
Drilling depth is limited with these bits; but once the holes have been "spotted" they should be easy to re-drill (use the depth stop on your drill press) to the depth you want.
If you make a lot of boards, it might be worthwhile to make your template from something more durable - like 1/8" aluminum, which should last a lifetime.
An afterthought:
I'm not a cribbage player and haven't seen a board for a long time. If the holes are too closely spaced for sufficiently deep countersinking in the template, it might be necessary to make two templates (each with half the holes) - in which case you'd want to provide some reliable way to register both templates to a pair of reference edges on the workpieces.
-- Morris Dovey DeSoto Solar DeSoto, Iowa USA