Hardin HPG-331-K variable speed 700-3000rpm pipe Polisher 800 Watt includes 36, 60, 120, 180 & 240 grit aluminum oxide sanding belts. The HARDIN pipe sander and polisher is a must have for metal working professionals. From sanding welds on rounded pipes and surfaces to polishing stainless steel railings or marine tube work the HARDIN pipe sander and polisher has you covered. With a 270 degree wrap angle this machine is particularly agile and powerful, ideally suited for finish or repairing pipes and tubes. Constant speed control delivers a smooth and consistent range of speeds even under load and the aluminum design and professional grade construction ensures a long service life.