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Re: Q&A response - new interpretation of R16
look at what happens when you start drilling a hole in a piece of metal, with a relatively large drill bit, like 1/2", using a handheld drill. Often the hole will start out with 3 curved sides, even though the bit has only two cutting sides. I think this is sort of what you're thinking of?
so try a 3 sided bit to make a square hole.
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