Pad Size: A 6-or 8-inch tool sands faster, but a 5-inch is better on tight corners.
Handle Shape: Barrel grips require two hands, lighter tools' pistol grips allow for one hand, while most palm-sized tools don't need handles.
Switch Placement: Make sure a finger can reach the on-off switch. Bonus points go to tools with reachable speed controls.
Variable Speeds: Sandpaper clogs less if the tool runs at a slower speed over acrylic or urethane finishes.
Low Vibration: You can sand with more control and less fatigue if the tool runs smoothly. Test it before buying.
Dust Collection: Paper bags or filters are better than cloth bags, but nothing beats a sander connected to a vacuum.
Hook-and-Loop Pads: With this Velcro-like attachment system, you can change sandpaper without ruining it.
Want to know more? Get more information on choosing and using random-orbit sanders. Then use the tool on jobs including and .