EDM appears very much like magic. It's sometimes the best solution, just not cheap and seldom 'handy'.
That's sort of my point. What good is a lubricant that doesn't last very long? Especially when it leaves sticky varnish behind when it evaporates?
--scott
take a trip to the store and either rent or buy an electric impact wrench [if you don't want to go pneumatic]. i dislike the noise from impacts and avoided them for years until is saw them effortlessly remove rusted exhaust bolts that i was previously just shearing off. now i'm a convert. and i haven't stripped or sheared an exhaust bolt since.
if you do shear and have to drill, try left-handed bits. 9/10 times, the bolt shaft winds out with the drill action once you've got about half way in. great tool tools to have for this job.
Some good tips on dealing with rusted bolts and stuff.
Have something to add? Share your thoughts — no account required.
Ask the community — no account required