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Thread: Reversible countersink - GIF

  1. #1
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    Reversible countersink - GIF

    Reversible countersink.




    Previously:

    Countersink drill bit - GIF
    Countersink head screw - video

  2. The Following 2 Users Say Thank You to Altair For This Useful Post:

    nova_robotics (Aug 19, 2023), piper184 (Aug 14, 2023)

  3. #2
    Supporting Member hemmjo's Avatar
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    Seems to be more a de-burring tool than a true countersink. But cool if you need to do much if that.

    2,000+ Tool Plans

  4. The Following 3 Users Say Thank You to hemmjo For This Useful Post:

    Frank S (Aug 14, 2023), piper184 (Aug 14, 2023), Ralphxyz (Aug 15, 2023)

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    Supporting Member Bony's Avatar
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    Does anyone know where I can get one of those from ?

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    Supporting Member IntheGroove's Avatar
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    Quote Originally Posted by Bony View Post
    Does anyone know where I can get one of those from ?
    I bet you could make one at home...

  7. #5
    Supporting Member Bony's Avatar
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    Yes I could, but my list of things I want to do seems to be too long for the time I have available. Retirement is great, but it's too short!

    Thanks, I'll put it on my todo list IntheGroove.

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    Supporting Member mklotz's Avatar
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    Regards, Marv

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  11. #9
    Supporting Member Bony's Avatar
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    Thanks Mark & Ralph. I could have looked for one myself, but having now been spoon fed I'm surprised at the cost. If I did make one I would hesitate at drilling a small hole through a small piece of HSS. I think that would be challenging. I have drills that can put a hole through a file but the 3 or 4mm size drill to hold the cutting blade would be costly and fragile and need to rotate at RPM beyond the speed of any machine I have, or contemplate getting.

  12. #10
    Supporting Member hemmjo's Avatar
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    Does not have to be HSS. Take an broken carbon steel drill bit or one of those files you drilled a hole in. Anneal it, forge it flat, shape it, drill it, harden it, temper it.

    I know, it all takes time, but it is an option many do not think about.

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