4 ms·
> Since a breaker bar (or actually the torque measuring version of it) You're thinking of a torque wrench. The pipe extension trick won't work for torque valu
by eric-hu 14y ago
> Since a breaker bar (or actually the torque measuring version of it)
You're thinking of a torque wrench.
The pipe extension trick won't work for torque values far exceeding the rating of the breaker bar. I've snapped the head off a breaker bar with a pipe on it. Generally, I've needed a breaker bar with a 30% higher torque limit than the torque specs of a bolt/nut in order to loosen said fastener after it's settled (generally a few days). Change that to about 50% higher once the fastener has fused to its shaft/bolt/socket (months to years, depending on environment too).
If you could get a torque wrench for $5 that would torque down power line tower fasteners to spec, then yes, I'd agree that a $5 breaker bar would do the job. It should only be stronger than a torque wrench of similar price.
The thing is that the fasteners for power line towers are huge, way bigger than the fasteners I've encountered working on cars. Fasteners that large aren't practical to lay down with mechanical tools that amplify human strength. They'll require pneumatic or hydraulic power equipment.
I still agree with your basic premise that cheap equipment can easily destroy expensive setups with some creativity. Perhaps a fuel source like thermite or magnesium would work.