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35317Re: [MILL_DRILL] how to drill deep holes

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  • Jerry Durand
    Feb 2, 2014
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      With peck drilling on a lathe I've gone beyond the flutes with just a
      bit of the shank in the tailstock chuck.

      On 02/02/2014 04:55 AM, lists wrote:
      > That is the normal procedure. When you've used your "long" bit you move to
      > the "extra long" series.
      > Interestingly, anything deeper than three times the drill diameter is
      > considered a "deep" hole", though I think most of us would cheerfully
      > drill almost to full flute depth without much thought.

      Jerry Durand, Durand Interstellar, Inc. www.interstellar.com
      tel: +1 408 356-3886, USA toll free: 1 866 356-3886
      Skype: jerrydurand
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