Random orbit forgives a beginner; a rotary does not
A dual action machine spins and oscillates at once, which spreads heat and makes burning through paint difficult — the reason it, rather than a rotary, is the tool to learn on. The number that changes how it works is the orbit throw: around 8 mm (0.31 in) is precise and slow to correct, 15 mm (0.59 in) covers panels quickly, 21 mm (0.83 in) is for large flat surfaces. Forced rotation machines keep turning under pressure where a free-spinning DA stalls, which matters on curves. Then come backing plate size, stated power, and a speed range wide enough to finish as well as cut. We compare throw, drive type, plate size, stated power and speed range.
720 W · 15 mm (0.59 in) throw · 6 speeds · 125 mm (4.92 in) plate · 2.8 kg (6.2 lb) · 8 m (26 ft) cable · 3 × 100 ml polishes included
A corded 15 mm (0.59 in) dual action machine sold with three graded polishes — cut, medium and finish — from a maker whose compounds are the reference.
Best for: A first machine polish, where having the right compounds matters as much as the machine.
Cordless · 5 mm (0.20 in) random orbit · 6 speeds, 2500–5000 rpm stated · 2 × 2.0 Ah and fast charger · 3 lb · three-color charge light
The lightest and cheapest machine here, with the smallest throw on the shelf and two batteries.
Best for: Applying wax and sealant over a whole car without the weight of a machine
15 mm (0.59 in) random orbit · 6 speeds, 2500–5500 rpm stated · carbon brush motor · pure copper windings · accessories included
A 15 mm (0.59 in) corded machine at $89.99, and the only one here that states a brushed motor.
Best for: Panels on a budget, by someone who has practiced on something else first
14-piece kit · TORQX random orbital · cutting, polishing and finishing pads · towels · Arsenal Range bag · no machine specification published
A 14-piece kit with graded pads and a bag, and not one of the five figures this shelf compares.
Best for: A first kit bought on a brand, where everything arrives in one bag
1000 W · 9 mm (0.35 in) orbit throw · 152 mm (5.98 in) vented plate, convertible to 127 mm (5 in) · 6 speeds, 2000–6400 OPM · 3 m (10 ft) quick-connect cord
The most powerful machine here and the widest speed range, on a 9 mm (0.35 in) throw and a vented 6-inch plate.
Best for: A first serious machine, correcting steadily on a 6-inch plate
Gear-driven forced rotation · clockwise · 150 mm (5.91 in) and 125 mm (4.92 in) plates both supplied · 3 compounds, 5 pads, 3 towels, apron, bag
The only forced-rotation machine on this shelf, with both backing plates and a full compound set in the box.
Best for: Someone who already knows their pressure, correcting curves without stalling
Cordless 18 V Power X-Change · brushless · 8 mm (0.31 in) orbit · 125 mm (4.92 in) plate · supplied without battery
A cordless brushless polisher with an 8 mm (0.31 in) orbit — the fine, forgiving throw — on a battery platform shared across a large tool range.
Best for: Someone already on Power X-Change who wants to correct a panel rather than a whole car.
≈ $340
Two cordless brushless machines · HLR75: 12 mm (0.47 in) orbit, 75 mm (2.95 in) plate · HLR15 for panels · LED charge indicators · fast charging
Two cordless brushless machines in one kit: one for panels, one with a 75 mm (2.95 in) plate for tight work.
Best for: A professional covering whole cars, where the small machine earns its place
The backing plate diameter decides the area treated per pass. On a bonnet, the difference is counted in tens of minutes.
A wide orbit cuts fast and heats the paint of a thin panel. The stated orbit throw, in millimeters, decides the margin of error left to a beginner.
A three-kilo polisher is held out over a bonnet for twenty minutes. The stated weight decides the quality of the movement at the end of the panel, not at the start.
With an eccentric it is difficult but possible if you dwell long in one place. With a rotary it is a matter of seconds.
Absolutely, and decontaminated. Polishing a dirty surface means rubbing the dirt into the clearcoat.
As many as needed, crossing directions, without pressing. It is the number of passes that corrects, not the pressure.
Edges and creases have thinner clearcoat and are the first to be burned through. Masking tape protects them.
Moderate warmth yes; a burning surface signals too much pressure or too long a pass in one place.
A cutting pad and a finishing pad at minimum, with the matching products. One pad does not do both.
Polishing removes a microscopic layer of clearcoat and leaves the surface bare. A protection applied afterwards preserves the result.
Far less than a rotary, because the pad stalls under pressure. The risk returns on an edge, where the contact area suddenly shrinks.
The eccentric forgives where the rotary burns through clearcoat in seconds: for an amateur, the choice is made. Wash and decontaminate first — polishing dirty means rubbing the dirt into the clearcoat — and mask the edges, where the clearcoat is thinnest.
There is no table here, and the reason is in the listings. The figure published most often across these 8 products is price, given by 4 of them — short of the four in five a column needs to compare rather than to display gaps. Each product page says what its own maker published.
Specifications: manufacturer sheets for garage tools and the matching Amazon product pages. Prices and availability: Keepa.
Most recent revision in this category: October 6, 2026.
Prices quoted in these summaries are dated readings. The live price is shown next to each product.
