Unlike belt sanders that only move in one direction ... the oblong handle on top (with an easily accessible power button) or wrap your hand around the base for more control.

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.

If there’s a small power tool as hackable as the angle grinder ... [Darek] turned his angle grinder into a micro-belt sander that’s great for those hard-to-reach places.