O.K. How precisely is it 15/16"? Do you have a micrometer to
measure it precisely? I would expect it to be pretty precise, as it
looks to be surface ground to dimension.


Turns out that it's not real close to 15/16" (.9375), I used two different
micrometers, the digital one read .924 and the mechanical one .917. So it's
closer to 59/64, which is .921875, I'm guessing that it's still most likely
a gauge for checking some work.


Rob