I think my Sawzall is the 10A version? I remember intentionally buying the smaller one as it would run on the generator I had at the time.

Multiple cars dismantled, years of home demo projects and tree pruning later, I have never once wished for more power. I would definitely go with the 12A version.

I also have a Rigid 18v reciprocating saw. Surprisingly capable.

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617 swapped Toyota Pickup, 22-24 MPG, 50k miles on swap