ad eBay - 1580W Rotary 7" Car Polisher Buffer Sander Powerful Polishing Machine Tool & Pad. Type: Rotary Car Polisher. 1 Polisher with UK plug. (grade 1: 600 rpm ; grade 2: 900 rpm; grade 3: 1500 rpm; grade 4: 2100 rpm; grade 5: 2700 rpm; grade 6: 3000 rpm).