It's this one:
http://www.harborfreight.com/cpi/cta...emnumber=43353
States 18 gauge steel max - but it will easily bend 16 and maybe 14. Shearing function is the limit unit. I have cut 16 with it - but it's really a tug to get it done. 18 is tough but doable. I just really don't like the design of the brake function and it's basically just trial/error type work - so I may end up purchasing a stand alone unit for that. The shear is fine and roller is fine IMO.
Jim