Park Tools ‘Des’s Hammerhead’

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  • Bottom reference.
    My Park Tools blue hammer head has sheared off. How do I get the rest that’s screwed in out?

  • https://www.amazon.co.uk/Damaged-Extractor-Easily-Remove-Stripped/dp/B07YTPZ35S

    This type of tool has worked for me on a couple of occasions

  • Thanks,
    That’s too much, I should’ve just bought a new hammer, but I’ve already bought a new head.


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  • drive a woodscrew in there some way (not insanely tight) then grab the top of that with mole grips and unscrew the lot?

  • Never done it before, but maybe you could create a notch on it and a screw it out. If you’ve got an old flathead screwdriver or similar (that you don’t mind ruining the temper on), heat the screwdriver over a stovetop flame and create a flat notch in the broken head. Do it in a well ventilated area, burnt plastic is bad for you. Edit: have done this on a shitty plastic BB that rounded off, it worked.

    If that fails, you could melt a cross into the whole depth of the broken plastic, then carefully torque out the plastic chunk by chunk.

  • If all else fails, epoxy the old head back on (sand and clean both surfaces first).

    Then offer the new head on here for a forum donation or something.

  • You could drill 2 small holes and use a pin spanner if you have one?

  • Get it out with a healing crystal.

  • Just put the crystal near the broken hammer and wait until it comes out. Super easy.

  • Don’t forget to use some essential oils on the threads.

  • Must be the night directly preceding or following a full moon

  • I have these two, but think they’re too big for what plastic is left.
    There’s always another way to do the job, that’s what @Digger said. Someone will have an easy solution.


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  • Loving these replies.
    I’ll hold off doing owt to get these ‘different’solutions.

  • Heat the whole flathead then slam it in there.
    After it cools you can twist it out.

    Try find some ideonella sakaiensis.

  • Wrong, wrong, wrong. You clearly need a shark's tooth toothpick.

    Dip the hammerhead in salted water and apply the toothpick to the blue plastic. It will float to the surface

  • Alternatively the description indicates that the tool has a replaceable plastic head. Simply replace it ;)

  • Left hand drill.

  • I’m vegan so it’s a no no with them bugs.
    Any ideas @Veloshrimp

  • Rubber band and the cross screwdriver.
    Depends on how tightly its wedged in.

  • Definitely heat something up, whack it in and let it set then unscrew.

    Easiest option Shirley?

    Can heat the screw driver or whatever on a gas hob if no blowtorch available.

  • Setting his house on fire would also work.

  • Yes. Shirley. But don't go overboard and push a white-hot screwdriver into the plastic or you might make some nasty fumes, and maybe sink in too far and melt the plastic threads. Then you've just got a toxic mess.

  • Loving these simple sensible solutions....
    Still looking for a mechanics crystal @Señor_Bear

  • Are we talking GT85? 😂

  • This one is good. Doubles up as a hammer.

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Park Tools ‘Des’s Hammerhead’

Posted by Avatar for Shandoom @Shandoom

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