I have never drilled out a bolt, but this may be the time. Someone long ago decided to replace the correct nut/bolt with this and it will not budge. The metal is too soft for visegrips and too scarred to hold any socket I can find...
It's been soaked with WD-40 for several days.
Ideas?
If drilling is the way to go, any suggestions? I don't want to drill too deep!
Thanks!