Rounded Torx Removal

[cheapo]

So, I'm sure you're all dying to know lol, it's out.

Hammer and chisel didn't have any effect.  Continued with mole grips which just scuffed the head as they kept slipping.  Tried hammering bigger Torx and Hex in, didn't work. Couldn't fit bolt extractor on with the clutch cover being so close. Then finally found a use for those imperial sockets lol, 1/2" socket smashed over the head well enough to start undo-ing it.

Heh, it's likely that all the impacts helped to persuade it too.
 I was going to suggest a Stillsons type pipe wrench. I bought a 15" pair when I knew I'd have to do my track rod ends, but didn't need it. Helped my neighbour with it for the same job on his car though.