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Recent content by oldeskool

  1. oldeskool

    3/8"-28 Tap Drill

    We're looking for a tap drill size for 3/8"-28 UN tap. The Machinery Handbook lists this thread as existing, but does not provide a drill size. Hours of google searching by two of us has also not provided any leads. Was wondering if any of you fine people might know or had a way of finding it...

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