HELP! How to remove snapped EZ-Out?

[Vauxmad]

Had a bolt snap on the brake caliper of my celica whilst I was trying to remove it. Went to machine mart and picked up this:-

http://www.machinemart.co.uk/shop/p...rench-set/path/screw-bolt-and-stud-extractors

And now that has snapped as well!

Anyone have any ideas on how I can get it out?