1. High-gloss finish floor made by the high working speed. 2. Working width 20inch and 27inch optional. SHCP-686 is more suitable for polishing marble, terrazzo, granite, etc. SHCP-508 is more suitable for small area. 3. Adopting the American imported polishing face, the grip is strong. The center of gravity is cleverly arranged, with a low center of gravity and a downward pressure balance.