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Thread: Tiny boring bar

  1. #1
    Supporting Member Christophe Mineau's Avatar
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    Tiny boring bar

    Hi
    For a very special work in the musical instrument area, I had the need of a very small boring bar.
    I simply has the idea to reuse somewhat my D-bit design, which ended up working pretty well.
    It's only 4 mm in diameter.





    Cheers !
    Christophe
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  2. The Following 13 Users Say Thank You to Christophe Mineau For This Useful Post:

    jjr2001 (04-30-2018), Jon (04-30-2018), JRock (04-30-2018), LucasC (08-30-2018), Miloslav (12-19-2018), ncollar (04-30-2018), oldpastit (12-20-2018), Paul Jones (04-30-2018), philipUsesWood&Brass (08-29-2018), PJs (05-02-2018), rossbotics (04-30-2018), Seedtick (04-30-2018), Toolmaker51 (05-02-2018)

  3. #2
    rossbotics
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    Now that's a small boring bar

    Doug
    Comments are always welcome
    Doug

    Subscribe to my you tube channel

    https://www.youtube.com/channel/UCDD..._as=subscriber



    Tool Plans for Sale by rossbotics






  4. #3
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    SO small...I cant see it.

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    Supporting Member ncollar's Avatar
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    I do not understand the two comment about his little boring bar. What part do you not understand. It's is a 4 mm bar cut like a "D" reamer, which usually cuts a finished hole exactly but in his case he is using it like a boring bar to make the hole bigger. I think he did a nice job of it and thank you for sharing with us.
    Nelson

  6. The Following 3 Users Say Thank You to ncollar For This Useful Post:

    Christophe Mineau (05-01-2018), Paul Jones (05-16-2018), philipUsesWood&Brass (08-29-2018)

  7. #5
    Supporting Member Christophe Mineau's Avatar
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    Thanks Nelson.
    Mudnducs, are you saying you can't see the picture?
    Cheers !
    Christophe
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    Visit my Website : http://www.labellenote.fr/
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    All my personal works, unless explicitly specified, are released under
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  8. #6
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    Thanks Christophe Mineau! We've added your Tiny Boring Bar to our Machining category,
    as well as to your builder page: Christophe Mineau's Homemade Tools. Your receipt:




  9. #7
    Supporting Member Ralphxyz's Avatar
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    So did you turn down a 4mm bar to get the D?

    Nice!!

    Ralph

  10. #8
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    Quote Originally Posted by Christophe Mineau View Post
    Thanks Nelson.
    Mudnducs, are you saying you can't see the picture?

    Bingo, yessir.

  11. #9
    Supporting Member philipUsesWood&Brass's Avatar
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    I see the (Awesome) photo's just Fine!!!

    Wonderful work!

    philip

  12. #10
    Supporting Member philipUsesWood&Brass's Avatar
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    Quote Originally Posted by Ralphxyz View Post
    So did you turn down a 4mm bar to get the D?

    Nice!!

    Ralph
    I think the 4mm bar is purchased @ size and he only machined the "D portion" He is in Europe and "If Needed" would most likely have to machine to obtain "Imperial Sizes" 0.125, 0.250 etc.

    philip


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