I need to bend many steel and aluminum fittings, brackets, bellcranks, ect. for a wooden plane project. The thickness is anywhere from .050 to .125. I am thinking about buying an inexpensive brake that can handle these thicknesses. I know the thicker the material, the bigger the bend radius needs to be. How do I change the bend radius on a brake when using different material thicknesses? Maybe I am confused on the bend radius. I thought the radius was formed my bending the sheet metal around something of the specific size that you need. How does this work on a brake when everything is fixed?