The Cordless Orbital Brushless Polisher Adopt permanent magnet brushless motor, low noise, smooth operation, Equipped with a 5.0Ah battery for longer battery life than similar products, the Cordless Orbital Brushless Polisher has a choice of 8mm, 15mm and 21mm throwing orbits, with different off-center rotational options for different polishing results and stable product performance. Weighing only 2.5kg, the ergonomic design allows for long term use.