The Viper is seven machines in one: grinder, polisher, edger, sander, buffer, burnisher, and stripper. The machine is ideal for refinishing and maintaining garages, basements, carports, and decorative concrete floors. Features include a 17-in. footprint, variable-speed motor, folding handle for easy transport, and edging to within 1/8 in. of a wall. WerkMaster. 866-373-9375.