Tips to remove small stripped hex bolts?

[Mike]

My parts came in and I'm rebuilding my crashed copter right now, but once I got all of the motors on, I realized that one of them is not spinning right. I was going to take it off to try to rebuild it (bearings & shaft) before I put a brand new motor on it, but one of the little M3 hex bolts is stripped. Any ideas on how to remove this without drilling it out?

Thanks!

 

[Mike]

I just read somewhere to tap a similar sized torx bit into the head of the bolt. Going to try that now. I will report back!

 

[Mike]

It worked like a charm!! I didn't even have to tap it in there with a hammer. I was able to just push hard on it with the screwdriver handle. Now I just have to figure out how to get the shaft off of the magnet housing!