Straightline action (reciprocal). A sophisticated, more versatile version of the standard Hutchins hustler, with special refinements. Powerful twin-drive for perfect alignment, with 2-Cylinder reciprocal thrust impelled by vertically-engaged gears guarantees smooth synchronized strokes for superior surface preparation. Eliminates operator fatigue, while providing full contact sanding without battering the surface. Multi-Options include full coaxial Hose for choice of vacuum sanding, or dust-free sanding using a detachable Dust Bag for shops without vac-systems. Comes complete with Dust Bag.