Hello fellows

I started hearing some noise in drivers side front brakes, maybe the pads are wore out, so I decided to take it apart and see what's what.

Both caliper bolt heads were stripped badly. I got one out because I went and bought a new hex socket that had nice crisp sharp edges on it.

The other won't budge.

I have tried everything I can think of, but the bolt head is definitely stripped and I can't seem to move it any other way. I tried driving a regular socket over top of it, but the metal is too hard. I tried heating it up to soften it a bit for this purpose, but I was scared to get things too hot in there in case I boiled the brake fluid or started a fire or something.

Please let me know if I should continue with this and what I should try. Or alternatively should I take it to a shop. It seems like a waste of money because I don't want them to fix the brakes, just get that bolt out...

Any suggestions?