Well if you don't have the $500-$1000 dollars for a tube bender go to harbor freight and spend $70.00. There is a mod out there so the tube bender does not flatten out the tube and works well. If you want to see I will post up pictures. I do 90's with mine and the tube looks great. Harbor Freight bender is for pipe not tube. Pipe is measured in ID and tube is OD. Not a big deal unless your building a cage for you truck or something like that don't worry. $500 for a bender to make a bumper is a waste to me.