Nano & Mini Polisher FAQs
Nano or mini, which size to buy, and where each earns its place.
What is a nano polisher, and how is it different from a mini?
Strictly, a nano polisher runs pads of roughly 2 inches (50mm) and under, typically down to 1 inch or 30mm, while a mini is the 3 inch (75mm) class. In practice they do the same job, which is why this page carries both. What matters is matching the pad to the area. A 3 inch machine such as the Rupes Mini BigFoot LHR75E clears a bumper or a spoiler far quicker, but a 3 inch pad still cannot sit flat on a mirror cap, a badge surround or the radius at the base of an A pillar, and that is exactly where the 1 inch and 2 inch machines earn their place.
Which size should I buy first?
If you already run a full size DA and want one machine to finish the awkward areas, a 3 inch is the more versatile first buy, because it still covers bumpers, pillars and shuts at a sensible rate. Go smaller when the detail work is the point, so badge surrounds, mirror caps, grille slats and tight shuts. Several machines here hedge the question by shipping with a range of plates. The Carbon Collective HEX Mini comes with 1 inch, 2 inch and 3 inch, which is why it suits people who only want to buy once.
Do I actually need one?
Not to start with. A 15mm dual action corrects the large panels that make up most of a car. A small area machine earns its place when you want the awkward ten percent to match the rest, so pillars, door shuts, bumper returns, mirror caps, badge surrounds and tight body lines finish to the same standard instead of being skipped or done by hand. Most people buy one second, after their full size DA.
Are these machines dual action or rotary?
Most are both. The compact machines here ship with interchangeable heads or counterweights, so you can run rotary for bite in a tight spot and a 3mm or 12mm dual action orbit for a safe finish right beside it. The exception is the Rupes Mini BigFoot LHR75E, which is dual action only with a 12mm throw. Small area work rarely needs just one movement, which is why the convertible format is so common in this size.
What pad sizes do they take?
It varies by machine and it is worth checking before you buy pads. The Rupes iBrid Nano 2 runs 30mm and 50mm, the DAS-6 Nano takes 1.2 inch and 2 inch, the Carbon Collective HEX Nano takes 1.5 inch and 2 inch, and the Liquid Elements A1000 uses a 38mm plate with 40mm pads. At the larger end, the Carbon Collective HEX Mini ships with 1 inch, 2 inch and 3 inch plates, and the Rupes Mini BigFoot LHR75E runs a 75mm plate with 3 to 4 inch pads. Buy pads to match the backing plates supplied with your machine.
Can I use one for wet sanding or spot repairs?
Yes, and it is one of the best uses for one. With the right backing plate and abrasive discs a small area machine refines wet sanded spots, knocks back dust nibs and paint runs, and corrects an isolated scratch without having to polish a whole panel. Keep the speed low and check your progress often, because you are working a very small area and material comes off quickly.