Router Bits Are Brittle / Les fraises de toupie (défonceuse) sont fragiles

Attention, mauvaise expérience.

Hier, après avoir fait les ajustements nécessaires, j’ai omis de dégager ma pièce avant de faire démarrer ma toupie sous table. Les fraises au carbure étant très fragiles et cassantes lors d’un choc, j’ai décidé de partager avec vous ce qui peut arriver (et c’est arrivé) dans une telle situation.

Caution, bad experience.

Yesterday, after making all required setups, I’ve omitted to pull back my workpiece before switching on the router in the router table. Carbide router bits being very brittle under impact, I decided to share what may happen (and it did) in such situation.


C’est la première fois que cela survient depuis ma première toupie acquise vers la fin des années 70. Même le son était affolant !

First time it happens to me since I acquired my first router in the late 70’s. Even the sound was scary !


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Always be careful and Happy Woodworking !

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14 Responses to Router Bits Are Brittle / Les fraises de toupie (défonceuse) sont fragiles

  1. Julien Bonenfant says:

    à part la fraise, pas de bobos ?

  2. diggerjack says:

    Salut Serge

    Toute expérience est bonne à partager surtout si elle permet d’éviter des accidents

    Le principal est que l’être humain n’est pas été touché sauf dans sa fierté peut être lol !!!
    Il est vrai qu’on utilise des machines dangereuses et qu’il faut être vigilant à tous les instants

    Au plaisir

    • Serge says:

      Salut Jack,

      Je connaissais en effet les risques mais j’ai eu un moment d’inattention. Plus de frousse que de mal.

      Alors il faut faire ce que je dis et non ce que je fais !! 🙂

      Au plaisir…

  3. stroland43 says:

    I had a 1/4” shank solid carbide bit snap. It was scary but didn’t go anywhere. I mounted it upside down and use it as a burnisher on my scrapers. Got some more use out of it.

    • Serge says:

      I also thought about using the 1/2″ shank, but I already own two burnishers. The metal scrap man will get it.

  4. kbwoodworker says:

    Serge, I’m a little confused by your post. Did you do anything to cause this, or did it just happen. Any way to prevent it or was it a defect in the bit. Was the photo of the router bit the only picture?

    In any case, I’m glad you are ok!!!

    • Serge says:

      Yes the photo was the only picture.
      As I mentioned, the router bit hit the workpiece before running full speed. I only forgot to pull away the stock before switching on.
      I’m OK, with a bit more experience, even if it’s a bad one.

  5. Mark Butler says:

    Thanks for sharing Serge. It’s hard to believe that a piece of wood could break a carbide bit like this so now this is burned into my memory and I’ll make sure this never happens to me. I know very well how fast an accident can happen and I am grateful that the person who provides me with the best woodworking tips was not injured as a result of this tip.
    Cheers
    Mark

    • Serge says:

      Yes, not injured. That means anyone can encounter this issue. As cancer, we always think it will happen to others only. But it’s not.
      Best,
      Serge

  6. Russ Darrow says:

    you need a refreaser corse on routing 101 , bet you jumped .

  7. kbwoodworker says:

    For anyone just getting started, the routerforums have some good “how to” articles. I’ve used them often and once in a while for a refresher.