Oh wow, I cant believe I misread that. I feel stupid now, and I apologize for the confusion.

From what I've noticed, the big expensive names are little more. Most of the time, it will actually have the whole thing outsourced.

I have a Campbell Hausfeld that happens to not be the best, and coincidentally a Snap-On/Blue Point (same company) that works ridiculously well. A middle of the road Harbor Freight one should work excellently as well. I agree with the "anything north of 500 ft lbs" as well. Mine is supposedly 425 ft lbs (I imagine more) and I havent come across anything that couldnt be loosened from it.