I am using this tool to hand-form the panels for a 450 square foot double-lock standing seam metal roof. The material is 26 gauge galvalume steel roll. I am not a roofer, just a handy DIYer. The tool is sturdy and works extremely well and forms crisp corners in the bends. It does take elbow grease to use, and the sheet metal has to be clamped down to a flat and sturdy surface that won’t move around too much. For the aforementioned material, I generally have to walk the tool back and forth about 10-11 times to make each bend. You generally need to push down into the bend, and your upper arms will get a workout from this. If you feel the metal bending as you push along the metal edge, you are probably bending too much in one pass. In this case the edge of the metal may work its way off the tool’s guide rollers and the bend will start to wander away from where you want it. Just be patient and don’t rush the bend. I definitely recommend this tool.
