Hmm ... did you try multiplying the diameter by 32? That comes
out just barely over 11/32 in size, so if you assume 11/32, that gives
you 0.3438" -- only 0.0028" off. I'll bet that it originally was
11/32".

....Or an "S" drill that shrunk as it got older.
--


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Joe Agro, Jr.
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