SOHC.co.uk Forums > CB500/550

fork drain screw bolt sheared

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MikeM:
well i tried the left hand drill went in so far and promptly snapped came out a touch, 1 thread now showing .......

so try 2 is next with the other tool now....... :-\ on order

so bike on hold

Lobo:
...progress then Mike! At least is come out a bit versus gone deeper. If you've a small Dremel any chance of cutting a slot in the exposed bolt - enough for a screw driver to get purchase on? Whatever...don't rush the job.

Norniron:
Drill a small hole in it an hammer an old torx bit into the hole,plenty of easing oil.
And remove slowly,

MikeM:
its starting to break up so I stopped awaiting this tool to turn up that was recommended


I will get it out

Ewan 500 K1:
a review of the screwfix grabbit from screwfix website, dunno how acurate it is but does suggest its not ideal for your application:                                                                                                                                            "First, I don't doubt this is a good product for removing screws with damaged heads, etc. It will probably also remove damaged bolts that are not too well stuck. However, my need was to remove a M8 bolt where the head had sheared off and this product was no use for that.

The grabit's instructions show it being used to remove a bolt where the head has sheared off, but as soon as you start to use the product it is clear that it is not designed for that. I rang up their technical support and they said it is not designed for where the head has sheared right off, even though this is exactly what is shown in the picture in the instructions!

They suggested I drilled in to the bolt and use the grabit in the drilled hole. I did that, applied a medium amount of pressure and the end of the grabit sheared off.

It is clearly not made for removing bolts where the head has sheared off. The instructions they give just won't work on such a bolt and the product is not strong enough for this because any bolt stuck enough for its head to shear off is going to need some force to shift it and the grabit won't stand anything near that force.

The grabit is probably very good for removing screws in wood and plaster around the house, but don't make the mistake of thinking this is an engineering product for removing bolts stuck in metal. I think this product is being mis-sold and Screwfix might want to take that up with the manufacturer."

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