[wawa]

Originally Posted by Heiko

Use a bolt extractor socket that fits overtop of the outter rounded edge... press/turn until it begins to bite into it... the more you turn it the tighter it will grip until is comes out.
Any tool place should sell them....
Something like this - Amazon.com: Irwin Industrial Tools 394002 Bolt-Grip Expansion Set, 5-Piece: Home Improvement

I wish it was that easy. The bolt extractor does not fit between the coil and the bolt head. Right now I'm trying to buff 2 flats spot on each side of the bolt head so I can try with a visegrip, but so far the visegrip is always slipping :-(

Later
Chris