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What are these boring tools?

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  • What are these boring tools?

    I got several of these along with a boring head the other day, I've not seen this type before. Are they just generic blanks, or made for a special purpose?
    The spiral form at the end means that clearances are maintained automatically when resharpened, which is neat.
    They're marked 'Stanton-Thompson', who seem to be a UK tool agent, & 'Made in Germany' along with some reference numbers.

    http://web.onetel.com/~duttondock/Pi...ringtool-1.jpg
    http://web.onetel.com/~duttondock/Pi...ringtool-2.jpg
    http://web.onetel.com/~duttondock/Pi...ringtool-3.jpg

    Tim.

  • #2
    Travers Tool www.travers.com sells, or at least sold, that style of boring tool. I imagine they still do.
    ----------
    Try to make a living, not a killing. -- Utah Phillips
    Don't believe everything you know. -- Bumper sticker
    Everybody is ignorant, only on different subjects. -- Will Rogers
    There are lots of people who mistake their imagination for their memory. - Josh Billings
    Law of Logical Argument - Anything is possible if you don't know what you are talking about.
    Don't own anything you have to feed or paint. - Hood River Blackie

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    • #3
      They look like Bokum bars.

      http://www.bokumtoolco.com/prod01.htm

      Not the greatest boring bars in the world, but they do have a long life because of the easy re-sharpening.

      Years ago I got an assortment of new Bokum bars out of the garbage can at an auction. The auction setup man found them in a drawer, not knowing what they were he threw them in the nearest garbage can.

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      • #4
        Those work pretty good,I like the "True-form"threading bars made along those same lines.You never have to alter or grind the angles,just the top,great for small hole threading.
        I just need one more tool,just one!

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        • #5
          boring bars....

          Hey, those look like the same design boring bars that came with my Narex adjustable boring & facing head.
          Yes, they are easy to re-sharpen and I use them in the small Atlas lathe sometimes too.

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