I've seen many times that your a$$ and other penetrants wouldn't budge nuts but a few hours soaked in Kano and they broke with hardly any effort.

 

we almost have fist fights in my shop if someone takes someones aero kroil. Best stuff ever. Kroil and a 300lb impact works wonders. If you snap the bolt, at least you won't have to chisel the head off to drill it!!! He He. I work in the power equipment buisness....all the landscapers stuff that is fixed always requies a large hammer and kroil.