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Hone with an elevated spine to the get the chip out, perhaps on a DMY 325 for most of it and then drop to 3 layers of tape on a 1K to get the last of it out and then set the bevel with one layer of...

It does not seem to be 100% true, but most times 1/2 is a round point and no fraction is a square. I have no idea what an Irish point would be like for fractions.