You’re probably familiar with the time-saving modern invention, the countersink drill bit. They look like this:

I never knew such a thing also existed for hand braces. Check out what I found at the Half Moon Bay 2024 meetup of PAST Tool Collectors.

I am looking at that one without the square taper shank, thinking that might work in a 3-jaw chuck (aka power drill — I don’t know a drill press).

I have not yet had a chance to measure them yet but I went through them quickly and I think there are 3 each with a label if eaither 0, 1, or 2. So 3 sets of 3 for 9 total. I will have to take calipers to them because I cannot tell a difference with the naked eye.