The HF unit is a pipe bender not tube. If you don't know the difference, you have no business building anything that requires structural integrity. HF bender is 100% joke junk to even attempt to build a "cage" with. Buy a good bender with good air over hydraulic power pack and ram, then buy a at least 2 dies, 1.75 x 240 degree and a 1.25 x 240 degree.
Invest in quality tools! never look back!
Hand bending 1.75 DOM tube is tough at best.
SD