Electric 7-Inch Polisher Buffer Detail Waxer Sander for Variable Speed Car/Boat. 4.8 out of 5 stars (12) Total Ratings 12, $48.99 New. AUTO CARE A02PO15 220V 600W 3500RPM Electric Car Polishing Machine. 4.5 out of 5 stars (2) Total Ratings 2, $38.99 New. DWP849 7in. and 9in. 120V Variable Speed Polisher.