11 How to Drill a Square Hole

How to Drill a Square Hole

Posted on February 6, 2007 by

Ever wondered how to make a perfect square-shaped hole?

This Russian animation shows you how to drill a square hole.

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11 responses to “How to Drill a Square Hole”

  1. mrcann says:

    it is not a “perfect” square-shaped hole 🙁

  2. hfidek says:

    the video doesn’t for me

  3. Acts_of_Atrocity says:

    youtube this.

  4. Bert says:

    Yeah, it’s a Reauleaux triangle, nothing particularly special and nothing unique to Russia. But very cool the first time you hear about it.

  5. max says:

    Similar to how a wankel rotary engine works.

  6. max says:

    Very similar to how a wankel rotary engine works.

  7. qwerty says:

    i’m really from Russia
    Our country is not so *uck


  8. gary says:

    in machine shops they actually do drill square, hex, and octagon shaped holes everyday. They do this with a special tool and drill bit.

    • Steve says:

      Can you give me information on how to drill a square hole

      • lame_penguin says:

        Watts drill, google it. It’s not as simple as just boring a hole, but it works.


      • Frank says:

        You drill a round hole and then you push or pull a broach through it and you get a hole of whatever shape you want, as long as you have the appropriate broach. Another way is to do it with spark erosion. You can 3D print it. Or you can do it with a tool like described above, which is also a broaching tool rather than a drilling tool.

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