Bending Brake
Before I bought one of these, I thought it was an excessive luxury. Now that I have it, I wonder how I ever got along without it. This tool is essential for making straight bends in sheet metal. The one I have pictured here is a relatively small one at 18", but it handles nicely, takes up little room, and personally, I have never wished for a bigger one. With this particular model, you will need to purchase four, "C" clamps. Two bigger ones (4") to hold it to the table and two smaller ones (2") to hold the metal down securely. Click the pic for a link to Harbor Frieght for purchase information.
4 inch clamp
This 3 inch clamp will work but smaller ones fit better if you can find them at a hardware store
This is the actual brake I use