electric impact wrench 12v or 120v?

[scott thomas]

I got alot of feedback about the electric impact
wrenches. I'm definately gonna buy one.
Hopefully, it'll break the crank bolt off like
some listers have said for themselves. If not,
it's still something I want for lugnuts, axle
bolts, etc.

Here's the question: are the 120 volt models
better than the 12v models? I noticed the 12v
ones are more expensive. The 12v ones might be a
better bet for roadside use (I have a second
battery wired in my trunk, anyway), but I can
sacrifice that convenience for better
performance.

The Official Dream Theater Site - http://www.dreamtheater.net/
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