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Car-detailing tools

Measure first: which paint gauge reads each panel

Pick a body surface to see which gauge method can read it, what the reading includes and what to check before you measure or polish, from gauge makers' own documentation.

Find your surfaceWhere the facts come from
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Find your surface

Matches each panel on a car to the gauge method that can read it, so you know before you measure whether a blank or odd reading is expected.

Choose your surface to see the key facts and what fits. Each fact links to its source on the full page.

All paint and surfaces

Start here

Our top pick for the most common fits. Each one says who it suits and links to the research behind it.

All best picks

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Find your polisher type

Pick a polisher type to see how it moves, which pad sizes and throws it uses, and the jobs it suits or should avoid.

All polisher types

Choose your polisher type to see the key facts and what fits. Each fact links to its source on the full page.

All polisher types

Start with what you need to do

Tools, shortlists and comparisons

ToolPolisher type finder: motion, throw and pad sizeShows what each kind of polisher does and which pads and jobs go with it, so you can tell which type you need before comparing models.Open →
ShortlistCordless polishers by battery platform: Makita LXT and FLEX 24VMatches a cordless polisher to the battery platform you already own and explains what else you need to buy.Open →
ShortlistDual-action polishers by job: long throw, short throw, cordlessNarrows the choice to three dual-action polishers with a stated power source and explains which job and battery platform each one suits.Open →

Common buying mistakes

  1. Measuring a plastic bumper with a paint gauge

    Magnetic and eddy-current gauges read paint over metal only. On a plastic bumper or fiberglass panel a blank or odd reading is expected; those surfaces need an ultrasonic gauge.

  2. Treating 200 µm as proof of a repaint

    Published 'normal' ranges differ by source and market, and factories sometimes repaint. Compare panels and mirrored spots instead: a gauge shows thickness, not the cause.

  3. Assuming any 18 V battery fits

    A battery fits a platform, not a voltage number. Even one maker can use different 18 V packs for different tools. Use the tool maker's own packs and charger.

  4. Believing a dual-action polisher cannot burn paint

    Maker manuals warn that too much pressure, the wrong angle or improper motion can still cause swirl marks or burning. A dual-action machine is more forgiving, not foolproof.

Guides

All guides
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GuideHow to check a used car's paint with a gaugeGives you a repeatable routine for a pre-purchase paint check and a sober way to read the results.Read →
GuideMagnetic vs eddy-current paint gauges (Fe vs NFe)Helps you choose between a steel-only gauge and a combination Fe/NFe gauge before you buy.Read →
GuideNormal car paint thickness: why there is no single numberStops you judging a car against a single 'normal' paint number that no source supports.Read →GuideRotary vs dual-action polisher: how each moves, what goes wrongHelps you choose between a rotary and a dual-action machine based on how each moves and the paint risks the makers describe.Read →GuideCordless polisher battery compatibility by platformTells you which batteries and chargers a cordless polisher can use, so you buy into the right platform or reuse the packs you have.Read →GuideBuying polishers and gauges on Amazon and AliExpressWalks through the checks to make on a marketplace listing before paying, so you get the genuine model, the right variant and a seller you can trace.Read →

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Glossary of 90 termsQuestions and answers

Gloved hands guiding a polisher with a foam pad across a dark car panel
Photo: Luay Barani / Unsplash

How we choose

We explain what paint gauges and polishers can do using the makers' own specifications and manuals, certifiers and regulators, and a few named independent sources with their dates. We list only exact models, corded tools only with a maker-stated North American voltage, and we say plainly when we could not tie a seller to the brand. A gauge reading is never presented as proof of a repaint. Nothing here has been tested by us, and we do not cover chemicals or liquids.

Read the full methodology