The next generation Zentool ZEN-21E2 Dual Action Polisher represents one of the latest advancements in machine polishing technology. With an orbit (throw) of 21mm, the dual action polisher has evolved to become a leader in efficient cutting power while still maintaining the safe operation expected from a DA polisher. The backing plate features ventilated cooling channels to help reduce heat transfer and the machine also includes an easy access panel for services and replacing carbon brushes. Electrical: 110VAC/60Hz. / Power: 600W. / No Load Speed: 2000-4800 RPM. / Orbit: 21mm (0.827 in). Backing Plate: 5 inch and 6 inch included. / Warranty: 1 year against manufacturing defects.