removing snapped bolts from the engine

hey today i was changing over my gears on my aerox , i finished the job and was putting my oil bolt back in and it snapped on me :/ anyone know of a good way to get it removed without damaging the engine or the thread ?

 

drill into it and hammer a torx bit into the drilling, that should enable you to turn and undo the bolt thread.
you just have to make your own mind up on what size torx and drill to use. this is how i remove snapped bolts

 

by torx do you mean a torx screw driver or an bit for a screwdriver ? and its quite a this bolt :/

 

a driver, preferably one you can fit a ratchet onto, halfords sell them and cost about 4 quid each for a socket version. from memory, a 5mm drilling will take a T30 torx.