I got the calliper bolts off - I needed to borrow a breaker bar and then
stand on the end of it.  And yes, I do need a better socket set.

I did notice that the bolts (19mm) seemed nearly the same size as the wheel
bolts - and considered using the tire tool, but it was a small loose and I
didn't want it to fly off or round them.

When I reattach these bolts, aside from a good amount of torque, do you
apply anything else to ensure they don't vibrate loose?