Dust extraction is half the tool, and all of the finish
Sanding filler and paint is a different job from sanding wood, and the machines differ where it counts: small orbits (2 to 3 mm (0.08 to 0.12 in)) for finishing, larger ones for leveling, and pad sizes chosen for the panel rather than the bench. The specification that decides the result is dust extraction: a multi-hole pad matched to an extractor keeps the abrasive cutting instead of clogging, and it keeps the dust out of what you are about to spray. Variable speed matters for the last passes, and low stated vibration matters for anything longer than an hour. We compare orbit, pad diameter and hole pattern, extraction, speed control and stated vibration.
Air · 125 mm (4.92 in) · 12,000 rpm stated · 5 mm (0.20 in) eccentric · all-steel rotor · low vibration stated
A 125 mm (4.92 in) air random orbit sander at 12,000 rpm with a 5 mm (0.20 in) orbit — the fine throw that suits paint rather than timber.
Best for: Paint preparation in a garage that already has compressed air.
16.5 × 2.75 in hand longboard · wooden handle, steel body · rubber pad conforms to contours · PSA or clip-on paper · 582 g (20.5 oz)
A hand longboard, not a machine: the only tool here that puts filler genuinely flat.
Best for: Leveling filler before any machine touches the panel
Air · 125 mm (4.92 in) pad · 11,000 rpm stated · 1 kg (2.2 lb) stated · one-handed operation · paint, metal, plastic and wood
A one-kilogram 125 mm (4.92 in) air sander — light enough to work one-handed, which is what a long session on a vertical panel requires.
Best for: Vertical panels and overhead work, where every hundred grams counts.
Air · mini · 15,000 rpm stated · 30 polishing discs, 15 abrasive sheets, 3 backing plates included
A mini pneumatic sander supplied with its consumables: thirty polishing discs, fifteen abrasive sheets and three backing plates.
Best for: Spot repairs, edges and areas a full-size sander cannot reach.
Air · square palm · 10,000 rpm · extraction hose and dust bag · 15 sheets at 1500, 2000 and 3000 · US connector
The only sander on this shelf with dust extraction, which is the specification the shelf calls decisive.
Best for: Flatting primer and clear coat without filling the garage with dust
6 in hook-and-loop · air palm · internal silencing · built-in regulator · metal touch trigger · 1/4 NPT · 1.85 lb · 10 discs
The lightest sander on this shelf at 839 grams, with internal silencing and a trigger that modulates.
Best for: A long session on a door or a wing, in a garage where noise matters
Air DA · 2,500–12,000 rpm published range · 5 in hook-and-loop pad · 3.1 lb · quick-connect fitting · contour sponge set
The only sander here that publishes both ends of its speed range, in a kit with three contour sponges.
Best for: Work that needs a slow pass as well as a fast one, on a 5-inch pad
Air mini · 1, 2 and 3 in backing plates · 15,000 rpm · 15 buffing pads and 18 abrasive sheets · 1,048 g (37 oz)
A mini air sander with three plate sizes and thirty-three consumables in the box.
Best for: Stone chips, door shuts and the places a 6-inch pad cannot reach
Air · three pad sizes 25, 50 and 75 mm (2.95 in) · low air consumption stated · low noise · one-handed
Three pad sizes in one kit — 25, 50 and 75 mm (2.95 in) — which is what makes a mini sander cover a stone chip and a whole repair patch.
Best for: Spot repairs of varying sizes, on a garage compressor that is not large.
6 in · 10,000 rpm free speed · 4.5 CFM at 90 PSI, 2 hp compressor suggested · two plates, PSA and hook-and-loop · 1.89 lb
The only sander here that publishes what compressor it needs, and the only one with both kinds of plate.
Best for: A garage with a real compressor, and a drawer of mixed PSA and loop discs
Speed decides the removal rate. On bodywork preparation, that is what separates one hour from three.
A reduced speed allows finishing without digging in or marking, which matters on a surface that will take paint.
Sanding filler makes a fine dust that settles on everything due to be painted next. The stated extraction port diameter decides how clean the booth stays.
Bodywork dust is very fine and abundant. Extraction and a suitable mask are necessary, not optional.
Without skipping more than one step: each grit has to remove the scratches of the previous one. Skipping a step leaves marks that will show under the paint.
Machine constantly moving, without pressing, in crossed passes. Dwelling in one place digs in within seconds.
On finishes and primers, wet sanding gives a finer surface and removes the dust. It does not suit bare metal.
A guide coat sprayed on reveals the hollows, which stay colored after a pass. It is the bodyshop method.
As soon as it heats, slips or clogs. A clogged disc burns and polishes instead of removing.
Masking avoids accidentally sanding a finished area. It is quicker than putting it right.
Rough it out around eighty, level around a hundred and eighty, and prepare for primer around three hundred and twenty. Skipping two steps leaves scratches the primer will not fill.
A sanding defect only shows up under the paint, never before: that is what makes the grit progression non-negotiable. Machine constantly moving without pressing, guide coat to reveal the hollows — and extraction with a mask is not optional with this dust.
There is no table here, and the reason is in the listings. The figure published most often across these 10 products is power source, given by 6 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.
