The twincutter by Craftsman is awesome!!! I cut through 2 1/4" diameter, 1/8" wall thickness steel in seconds, very little kickback, very smooth cut.
Cons: metal chips everywhere, but the cut is smooth, and all the cuts are "freehand" since there is no deck to use, but if you are careful, yo uget great cuts in any direction. Another con is that it seems to get hot pretty quick. I would never use this on wood, a circular saw would be much better. But for steel, it crushes my sawzall and my jigsaw.