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Holes through tubing

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  • Holes through tubing

    Anybody got a tool or a process for debudring holes through tubing? The O.D. is easy, how do I get the burr off the I.D.? Tried drilling underside and reaming, that helped, still have a slight burr. Any ideas?
    Gerry
    Patrol

  • #2
    There is such a thing as a blind deburring bit that you chuck in a drill. It has a retractable cutter that allows it to pass through the hole. I saw one at an RV builder's shop but have never purchased one, since they are expensive. What is the application?
    https://cogsdill.com/products/deburring-tools/

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    • #3
      The empennage has weldments that slide on to smaller diameter tubes. Grease fitting holes through elevator hinge fittings is one example.
      Gerry

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      • #4
        I have used a deburring bit like this with good success.

        https://www.aircraftspruce.com/catal...?clickkey=7152

        Lee
        Last edited by Lee; 04-28-2022, 02:36 AM.
        Patrol QB #312

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        • Camflyer
          Camflyer commented
          Editing a comment
          That's what I was thinking when I read the op question.

      • #5
        If the tube is short, what about a rounded file applied parallel to the tube length?

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        • #6
          I just used a fine-cut round file as Jared suggested to knock the burrs down. I also used something like this to polish the inside of tubing that I had welded: https://www.eastwood.com/autobody/sa...=google&wv=3.1

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          • #7
            Not sure about the clearance but Paul (@alaskabearhawk) posted this video recently, would this work for you?
            https://youtu.be/C7nW6E6gL0I
            Mark
            Scratch building Patrol #275
            Hood River, OR

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