T20 stuck in rear pad

[dom16v]

Im trying to change the pads on the rear but cant get one of the T20 bolts out, any advice?

[summeh]

penetrating fluid, heat, hammer, T25 and hammer then wrench, failing those then screwdriver and hammer, failing that then drill it out as there shouldn't be much left of the head after all that.

[teabag]

penetrating fluid, heat, hammer, T25 and hammer then wrench, failing those then screwdriver and hammer, failing that then drill it out as there shouldn't be much left of the head after all that.

can imagine each stage getting more violent

[CRLParis]

use air tools they work a treat impact wrench FTW

[Lunner]

Id use a 6mm drill bit and drill the head off, shoudl be able to pry the pad out witht eh remains of the bolt then