Another tip from a little different angle (may save you money and embarrassment ) Lesson learned!

Wanted to service my SPD pedals. It's an easy and quick process...well, at least it should be lol
Used some home hand tools on this baby in a cold 10F /-12C/ garage. What happened with it you can clearly see on the pics.
Instead of buying $2-$3 Shimano Pedal Tool, I damaged $50 pedals. What a deal!
Luckily I have couple more sets of the same pedals, and now I have Shimano tool which came in the mail yesterday. YEY ME! lol