Yes.Did you drill it out still on the truck?
We used the drill only (can't remember how many mm - and no machine) and moved it by hand in and out for quiet some time. The drill was used as a file/rasp.If so what was your setup?
Luckily it wasn't raining...
Yes, it was effort.My alternator bracket looks like it would make it impossible to get in there with even a right angle drill.