How can I remove a stripped crank bolt?

Question

I need to remove my crank bolt on my BMX bike and it has been stripped from previous attempts. How can I remove this without needing to buy a new crank?

Answer 1

http://cgi.ebay.com/ebaymotors/Snap-On-T...

Most stripped heads are due to using the wrong socket.

Answer 2

Try reading this link.  I was going to give my own explanation, but  these guys are basically saying the same thing.

http://www.bikeforums.net/showthread.php...