Belanger,
I see what you mean with regards to the hex in its entirety. If I came across a test question that has an internal hex or octagon and I was instructed to fully dimension and define the feature, do I assume it is irregular and use geometric tolerances for the profile or should I...
My problem is just what you have confirmed, there are two ways to answer that. It seems to me that a standard would not leave that gaping hole. My book has it as an irregular fos, but the dimension is 3x the dimension across the flats. I thought the dim across the flats would be two parallel...