If you feel it’s too difficult to start with a belt sander, you can also tackle this project with a fixed-base bench sander, allowing you to focus on the tools as you work. Shape metal contours.

A wide belt sander is usually a woodworking tool, and it invariably includes a dust bag. Those with narrow belts (also called power files) can often be used on metal, and may not have a dust bag.

Suck it up and buy a belt sander — or re-purpose a tool he already ... It slides in between two metal guides, and attaches using the threaded hole for the angle grinder’s handle.