re: He used red loctite..
Really? What on earth for? Guess the fact that it was used makes it a dumb question.
FTR...don't do that!!!
There are
lots of different types of thread locking agents for lots of different puposes. Please do read the label (if not the spec sheet!) before using any type!!
In any case sticking the pins isn't that unusual a deal. As stated, the dissimilar metal issue is the problem. Heat makes it worse!
I have succesfully used an EZout to remove a stripped-head pin. Frankly I was surprised it worked, but it did. Choice of drill bit is important! A too-big one obviously will damage the caliper.
For next time: Put the pins in with the correct LocTite product. It is
not red in color for starters. Use something that is intended to be removed with hand tools. It will be blue in color.
**edit**
I think never-seize is a better choice, though.
Oh...it's
not just the color that matters!!! Some LocTite products of the same color are hugely different in application!!
Use a
good wrench! In most cases (in most toolboxes) that will mean using a
new wrench. Uh....they are
metric!!! Don't use the wrong tool for the wrong job. Use the correctly sized wrench..one that has sharp edges...
notone that has been used in the past to strip out some other head.
If you're tempted to use a cheater on an allen head fastener...rethink that action before you do it. A 12" handle on a 5-6mm allen is asking for a problem.
That said...I use a cheater on my brake pins all the time!
Good luck!