A quality electric car buffer, combined with polish and wax compounds, is the secret weapon in just about every automotive detailer’s arsenal. Under a deft hand, these items can be used to restore a vehicle’s paint nearly back to showroom quality, give it a luxurious shine, and add a layer of protection from further wear and tear. While such products can be applied by hand, a buffer is simply going to bring much more efficiency, speed, and precision to the process.
What to Consider
RPM Versus OPM
There are generally two types of car buffers on the market, those that rotate normally on one axis, and those with heads that orbit semi-randomly. Rotating buffers are preferred by experienced detailers, and their output is specified in revolutions per minute (RPM). Orbiting ones provide a gentler touch for the average consumer, and their average speed is measured in oscillations per minute (OPM).
Clean Car
You should never, ever, use a buffing tool on a dirty car. That will just drag contaminants around and cause scratches. Have the vehicle fully washed and dried before starting the polishing process. We also recommend consulting your car’s owner’s manual or other professional resources to see what’s best for your particular car’s paint, as every coat may be a little different.
Bonnets and Microfiber Pads
Buffers use a variety of microfiber pads, or “bonnets,” which cover the rotational assembly and generally are six to ten inches in diameter. These bonnets range from soft and gentle, to relatively coarse. A coarse pad may be needed to get deeper into the paint and smooth imperfections in the clear coat, but you’ll most likely want to start with the softest possible product first to get the hang of using it. While applying polish, move the buffer gently and evenly across the paint surface, with a slight rotating motion. Be sure not to leave the tool in one spot for extended periods of time, as that can introduce wear into the clear coat.
Spin Speeds
Also, look out for available speed settings. Cheap buffers usually spin at only one speed, while premium options come with a variety of slower or faster presets. Low settings are good for a gentle touch, while higher ones may be needed for more drastic paint correction.
How We Selected
We selected these products at a variety of price points, using personal experience in auto detailing, as well as expertise from publications like Car and Driver, AutoGuide, and The Drive.
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1
Best Overall
PORTER-CABLE Porter-Cable 7424XP 6-Inch Variable-Speed Polisher
1
Best Overall
PORTER-CABLE Porter-Cable 7424XP 6-Inch Variable-Speed Polisher
Pros
Variable speed
Good ergonomics
Cons
Only one bonnet included
This Porter-Cable product brings a happy medium between a pro-grade and consumer buffer, putting a variable-speed orbital motor into a compact but comfortable casing. Speed can be set anywhere between 2,500 and 6,800 OPM, with power supplied via an eight-foot cord.
The polishing head offers six inches of coverage, with only one wool bonnet included. Additional six-inch pads are fortunately easy to find. One grip is placed near the bottom of the buffer, with a supplemental foregrip at the top which can be screwed into either a right hand or left hand position.
Pros
Affordable
Convenient
16 heads, including brushes
Cons
Small coverage
Limited capability
This kit is about as affordable and easy as can be found, because it simply adds one or more buffing heads to any household electric drill. The bonnets are all about four inches in diameter, with a few scrub brushes also included for jobs like scrubbing brake dust off of rims.
The kits capabilities like RPM are going to be entirely dependent on the drill it’s attached to. You’re most likely not going to get any orbital rotation with this method, either. The lack of control and small pad size make this product most useful for quick spot correction. For detailing an entire vehicle, you’re better suited investing more for a dedicated buffer.
Pros
Affordable
Orbital rotation
Cons
Not the most ergonomic
One speed setting
This is about the most affordable price to be found for an orbital buffer. The head is six inches wide, and includes a wax applicator pad as well as one polishing bonnet.
Power is provided by a six-foot power cable at the top of the device, which may drag on paint surfaces if you’re not careful. There’s only one speed setting, at about 4,800 oscillations per minute.
Grip is handled by the rounded “nub” on top of the motor, and we’ve found this method of control to grow increasingly awkward over extended use. It could possibly lead to hand cramps.
The design also means that basically all vibration coming from the motor is channeled directly into the user’s wrist and forearm.
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4
Twin Grip
Black & Decker BLACK+DECKER 6-inch Random Orbit Waxer/Polisher
4
Twin Grip
Black & Decker BLACK+DECKER 6-inch Random Orbit Waxer/Polisher
Pros
Good ergonomics
Long cable
Cons
One speed
This model is mechanically similar to the Ryobi, but comes with added convenience features. Two points of grip make it more comfortable to use long-term, and the ten-foot power cable is mounted further away from the buffing head.
The motor does provide slightly less power than the Ryobi, however, at 4,400 OPM. That’s also the only speed setting it has.
Three six-inch bonnets are included, with one applicator and two polishing pads.
5
Best Cordless
HART HART Cordless 10-inch Random Orbit Buffer
5
Best Cordless
HART HART Cordless 10-inch Random Orbit Buffer
Pros
Cordless
Large coverage
Cons
One speed
Awkward grip placement
The main selling point of this HART buffer is the cordless feature, meaning no need to fumble around with power cables as you work. One 20 volt battery is included with the kid, providing an estimated two-and-a-half hours of use on one charge. Additional batteries can also be purchased, and used to power a variety of tools in the HART system.
The large 10-inch head comes with one applicator and one buffing bonnet. The manufacturer rates the one speed setting at about 2,900 RPM, which should at least match the oscillations per minute of our previous entries.
The two hand grips are placed on either side of the motor, which doesn’t provide quite as much comfort and control as the Black & Decker tool.
6
Best Two-Speed
ACDelco ACDelco Mini Cordless Polisher Tool Set
6
Best Two-Speed
ACDelco ACDelco Mini Cordless Polisher Tool Set
Pros
Max portability
Two speed settings
Cons
Small coverage
Short battery life
Heat dissipation issues
This mini polishing tool has about the same footprint as an electric impact wrench, with a pistol grip and adjustable foregrip for maximum stability. Compact size means the coverage is only about three inches diameter. Multiple polishing bonnets and foam scrubbers are included, as well as some sandpaper pads if you happen to have any carpentry projects. It also lacks orbital rotation, so extra care will have to be taken while buffing.
The motor packs a lot of power for its size, and has two speed settings at 2,800 and 7,600 RPM. The high setting is more suited to coarse scrubbing and sanding than paint polishing, however. Power is supplied by a 12-volt rechargeable battery, two of which are included.
Reviews mention that the batteries charge quickly—but also drain quickly, lasting 30 minutes or less. The motor also heats up over sustained use and may require cool-down waiting time.
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7
Best All-In-One
Torq Chemical Guys Torq Polisher Kit
7
Best All-In-One
Torq Chemical Guys Torq Polisher Kit
Pros
Suite of products in the box
Instructions included
Cons
Short cord
Expensive
This handy DIY kit includes not only a TORQ random oscillating buffer, but also three 5.5-inch bonnets and four bottles of Chemical Guys liquid polish, ranging from coarse to gentle finishing compound. The TORQ buffing tool features six speed settings from 2,800 to 7,800 OPM, powered by a relatively short three-and-a-half-foot cable. Grips are located on the top and bottom of the device, and can easily be used right- or left-handed.
Also included are detailed instructions on how to use each Chemical Guys compound with corresponding speed settings, making it a great resource for amateur detailers looking for education on the buffing process.
8
Premium Option
Makita Makita 9237CX2 Polisher-Sander Kit
8
Premium Option
Makita Makita 9237CX2 Polisher-Sander Kit
Pros
Analog speed control
High durability
Made in USA
Cons
No orbital mechanism
Expensive
This Makita buffer is a product pro detailers swear by, thanks to American-made reputation and long-term durability. The motor boasts variable speed from a low 600 RPM up to 3,200, with an eight-foot cable length. An analog trigger switch also gives further control over power delivery, and “soft start” features prevents polish spray as the motor spins up.
Built-in dust and fabric filters protects moving parts over hours of sustained use. It is however missing an orbital function, so oscillations will have to be done manually by a skilled hand.
A pistol grip surrounds the trigger mechanism, while a chainsaw-style handle provides stability up top. The buffer provides good coverage, with seven inches of diameter. However, no bonnets are included in the carrying case, and will have to be purchased separately.
Talon Homer
Talon Homer is a writer and photographer out of South Carolina who was born with a love of cars, gaming, and advanced technology. He’s been featured in Car and Driver Magazine, Popular Mechanics and The Drive, covering consumer reporting, custom engineering projects, and transportation tech. If he’s not at the keyboard, he’s probably snapping photos at a race track or playing too much Halo.