Yep! Left-handed drill bits.. Small for first hole and getting larger.. The backwards bits will eventually grab hold and back the bolt out of the nut threads.
Lesson for torx screws... ALWAYS clean the torx bolt of all paint and debris before attempting to take one out. ONLY use the exact size and ONLY use a high quality tool!
Big Jim <img src="/forums/images/graemlins/pfft.gif" alt="" />

professional bovine relocation specialist