The Oscillating Spindle Sander 50-300 from Rikon Power Tools is a specialized sander for the fast and accurate sanding of curved board edges. The abrasive sleeves mounted on the machine’s spindles oscillate up-and-down 15 to 16 inches, 29 times per minute while the spindle spins. This speed and accuracy provide more efficient abrasive cutting action. This spindle sander features a powerful 0.5 horsepower motor, all steel gearing, ample cast iron tilting table, and metal housing. This sander also includes 5 spindle diameters ranging from 0.5 inches to 2 inches and 6 table inserts, making this a valuable machine for every shop. 4-1/2″ long abrasives. This is a must-have for any shop that is doing contour sanding. Whether you're sanding curves, bevels, or other contours, this sander will provide a beautiful, scratch-free finish.