Milwaukee sells its M18 18V Cordless 5 Inch Random Orbit Sander, which is just small enough ... Having to hold on to a power tool with your palm, if the vibration is too much, it can get tiring ...

The Milwaukee M18 3-by-18-Inch Belt Sander for $279 at Ace Hardware (for the tool only), is a portable power sander that lets you work anywhere you want. It includes a barrel grip, so you can ...