Tried to extract some exhaust bolts but unfortunately I snapped two before finding out how to get them out without breaking. Who'd have guessed hitting them with a hammer would loosen them up, I simply took out Mr Handi Dandi Pipe Wrench and put some muscle into it since spraying WD40/CRC it didn't help.
So, I then dived into my drill bit collection and picked up a non-concrete drill bit of the right size.
Put it on the bolt and went for it. Unfortunately, the drill bit turned a shade of blue in under a minute and made so much noise I needed to wear ear muffs!
Not sure what's gone wrong, during metal classes at school, those non-concrete drill bits just ate the metal like breakfast and mine barely made a dent.
So did I grab a wood drill bit instead and if so, how can I tell the difference between that and a metal one?
Or are snapped exhaust bolts just difficult to drill out?
I'm not concerned about damaging the thread, I just what them out.
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