Chances are yours unlike the one in Antony's pic is loctited/thread locked in so its easier for the bolt and nut you are using comes out, this is why I use and Easy Out / Screw Extractor

I am assuming this is like a drill bit?

I dont have power in my garage, so is there any other handtool i can get that can get these things out?

i might use a hammer.

No Dan
Its a hand tool, they normally fit into a tap wrench, but can be used with a good quality adjustable spanner as the ones I have have a a square end .
They are pretty much like a coarse thread left hand tap, lightly tap it into the end of the jammed bolt with a small hammer, put a spanner across the flats of the square end and turn anti clockwise, it will try and screw itself further into the cone but at some point the force required for it to go further in exceeds the force required to break the thread lock and starts unscrewing the stuck bolt. So No power required

I would recommend the tap wrench over a spanner
http://www.ebay.co.uk/itm/Engineers-...item3a7ef95c3b

Try it again using two nuts on the inserted bolt and lock them together.

Also try and get a blowtorch on the jammed bolt, the heat will break up the hardened Loctite/threadlock and make it easier to get out.

I bought the tools that Skidlids suggested.

Will take another bash at it this weekend.

If all else fails I am going to take a hammer to it.

If you're not going to be reattaching anything there, just drill the bolts out or angle grind them off. The only time you need to remove anything carefully, is if you need to refit it or something else in its place.

No power at the garage and too far to push the bike back home (and I don't own a van or trailer, I hire each time)

Time to consider one of these?

http://www.diy.com/nav/fix/power-too...skuId=12910116

Or one of these, can get them £50 cheaper if you shop around:-

http://www.ukhs.tv/Generators_2/Gene...rt-Generator_2