Mechanical oscillation is unlike larger wide-belts, no air is required.With the total adjustability the table, belt, and tracking can be adjusted.The dust hood is integrated into chamber to extract dust through the cabinet and away from your workpiece for superior dust collection.The built-in extendable side and outfeed table provides ample work support for oversized pieces.The powerful 3 HP motor provides maximum power for all your sanding needs.The on board storage provides storage areas within the stand give generous space for extra belts, wrenches and other accessories.