On Monday, July 1, 2013 5:05:50 PM UTC-4, John Doe wrote:
I can use a hole cutter, hopefully to cut through hardwood. But

regular wood might work. There will be no hurry to make the cuts.

Accuracy is important.

So, drill the center hole then instead of a hole saw with
a pilot drill, fit a hole saw with a pilot dowel. The dowel will
make a more stable center than a twist drill.