Yes it would, but I didn't have one available at the time.
Or a regular wrench + a good number of firm taps with a hammer?
Tried that before breaking out the jack.
An 18" lever and floor jack sounds like a good recipe to break off a frozen bolt.
Yeah, it is a lot of times. After the first attempt, I let it sit for a couple of days with penetrating oil on it, and I had the drill ready to go if things went south. I was frankly surprised that the bolt *didn't* break, and even more surprised that the threads were perfectly clean, with just a little bit of blue Loctite on them.