Home Forums Bike Forum Which screw extractor set

  • This topic has 11 replies, 11 voices, and was last updated 4 years ago by RicB.
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  • Which screw extractor set
  • RicB
    Full Member

    Is anyone able to recommend a good quality screw extractor set suitable for general diy and cycling stuff (so 3mm-8mm range)?

    The cheaper kits get poor reviews but some of the pricier ones do too!

    I was looking at the Saxton ones but I’d happily pay more (£20 ish) as I prefer to buy decent tools that last a long time

    imn
    Full Member

    I have a cheap Screwfix set that work ok, and would expect you’re better off spending on decent drill bits to get the starter hole made reliably without snapping and creating a bigger problem.

    idiotdogbrain
    Free Member

    Are you looking for something to remove rounded-off hex bolts?

    https://www.machinemart.co.uk/p/laser-7-piece-damaged-hex-bolt-extractor-set/

    dyna-ti
    Full Member

    Couple of nights ago I was watching a recommended YT vid on just this subject 😀 See if I can find it again.
    Here we go 😀

    bravesirrobin
    Full Member

    I spent way too much time procrastinating over this question myself recently and ended up buying this Clarke kit… https://www.amazon.co.uk/dp/B00DM8QO7A?ref_=pe_3187911_248764861_302_E_DDE_dt_1

    …took seconds to extract the offending bolt and left me wondering whether my procrastination time was well spent or wasted… still can’t decide 🙂

    TheBrick
    Free Member

    Left hand drill bits ime. That gets most out.

    Northwind
    Full Member

    Trouble is with small bolts, the tools get very delicate and if you snap them, you still have your stuck bolt and now it has a really really hard to drill through tool stuck in it too. IME they are a last resort, for anything under M8. Bearing in mind that the bolt is obviously sufficiently stuck that the original head broke or rounded, which means you need the tool to be stronger than that.

    Left handed drillbit, yes. Bolt specific extractor like the Irwin and Laser ones posted, oh god yes. (torx is a decent substitite for cap heads) Cut off top of bolt, remove all the other ones then molegrip it out once the tension’s off, sometimes. Cut a slot in it and screwdriver it out, sometimes. Heat, penetrating oil, almost goes without saying. If you can weld then whole new set of rules… And then after all that, extractor tool.

    jkomo
    Full Member

    Dremel a slot on small stuff has worked for me.

    RustyNissanPrairie
    Full Member

    Dormer for recessed holes, angle grinder/stilsons/tig welder/Irwin Bolt grip for anything external/proud.

    If you snap a large Dormer you’ll then need to find someone with a spark eroder machine to remove it…..speaking for a friend

    hainman
    Free Member

    I had a proper stuck and rounded pivot bolt on my Aeris frame
    Tried the ‘tap a bigger hex key in’ method and heehaw
    Used the Lazer extractor bolts and it shifted and came out first time
    Good bit of kit

    RicB
    Full Member

    Thanks all, really useful. Agree with the comments re being last resort but sometimes it gets to that point

    Probably a daft question but would an impact driver be better than a drill? The sharp knocks maybe more likely to budge the screw than a constant torque from a drill

    Having said that my impact driver is rated at 200nm, so not sure a 4mm bit would survive!

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