Tool Test: 5-Inch Random-Orbit Sanders

When wood needs sanding, random-orbit sanders finish the job—smoothly and without swirl marks, if used properly—in a fraction of the time it takes to sand by hand. Today's random orbitals promise less vibration, better dust collection, and longer tool life than earlier models. We asked readers to try these hook-and-loop, 5-inch-diameter models. Here's what they had to say.