With a built-in water hose that lubricates your work surface and washes away the resulting grit, these sanders are less likely to scratch your surface than other air-powered sanders. They also extend the life of your sandpaper. Use them to polish molds, car bodies, and other surfaces that are easy to scratch. Their random orbital motion creates a finish that’s free of swirls and more consistent than standard disc sanders. Pair them with hook and loop sanding discs; swap discs out using the quick-release pad.