Which tool is commonly used to bend large sections of sheet metal?

The tool commonly used to bend large sections of sheet metal is an arbor. An arbor is a device designed to hold and support workpieces while they are being shaped or formed, making it ideal for bending operations. This process often involves the use of additional components, like dies, that fit against the metal to create the desired bend or shape. Arbors are strong and can handle the significant forces required to manipulate thicker sheet metal, ensuring precision and control during the bending process.

In contrast, other tools like the router, soldering iron, and drill press serve entirely different purposes. A router is primarily used for hollowing out areas or creating decorative edges in wood or other materials. A soldering iron is used to melt solder and join metal parts, not for bending them. A drill press is specialized for drilling holes and does not have the capability to bend materials. This distinction further highlights why an arbor is the correct choice for bending large sections of sheet metal.