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If you roam around long enough you will see that nearly all the 1/2's have a round point. I have three mint 17's that all measure 15/16. You are correct on the 14's

pretty much the 1/2 stands for round point. You can figure out all of the widths for the model numbers but most of them are 5/8 and 6/8 the larger 7/8 and 8/8 are all in the 17's and 14's and not...