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DEWALT

DEWALT 20V MAX* XR Cordless Polisher

DEWALT 20V MAX* XR Cordless Polisher, Rotary, Variable Speed, 7-Inch, 180 mm, Tool Only (DCM849B)DEWALT 20V MAX* XR Cordless Polisher, Rotary, Variable Speed, 7-Inch, 180 mm, Tool Only (DCM849B) — photo 2DEWALT 20V MAX* XR Cordless Polisher, Rotary, Variable Speed, 7-Inch, 180 mm, Tool Only (DCM849B) — photo 3DEWALT 20V MAX* XR Cordless Polisher, Rotary, Variable Speed, 7-Inch, 180 mm, Tool Only (DCM849B) — photo 4DEWALT 20V MAX* XR Cordless Polisher, Rotary, Variable Speed, 7-Inch, 180 mm, Tool Only (DCM849B) — photo 5DEWALT 20V MAX* XR Cordless Polisher, Rotary, Variable Speed, 7-Inch, 180 mm, Tool Only (DCM849B) — photo 6

8.1Detail Pro Rating · 4 sources

4.6(1,966 ratings)

$235

Price and rating captured from Amazon on September 14, 2026.

$235 at Amazon(paid link)

Brand

DEWALT

Size

Not listed

Reviews

1,966

Specs are read from the manufacturer's own Amazon listing text. Anything the listing does not state is left blank rather than estimated.

Hands-on video

The most-watched review of this product

Dewalt Cordless Polisher (Rotary) DCM849B 20V MAX XR 7in

MMChannel · 41K views

Chosen automatically as the most-watched review of this exact product with at least 5K views. We do not pay for or commission any video.

Detail Pro Rating

8.1 out of 10

A single score blended from every independent read-out we could find. Amazon carries the most weight, a hands-on video review next. Sources we could not find are left out and the rest are reweighted, so nothing is invented.

Amazon customers

9.245% of score

Hands-on video review

8.525% of score

Dewalt Cordless Polisher (Rotary) DCM849B 20V MAX XR 7in

Expert review

8.515% of score

20V MAX* XR® 5 in. Cordless Variable-Speed Random ...

The high-efficiency brushless motor delivers up to 75% more runtime over brushed. The sound level while polishing at around 2500 rpm. The variable speed ...

Reddit owners

4.015% of score

I'm amazed by the lack of affordable cordless tools ...

Polishing takes hours of run time and most real DAs draw 1000w+. Battery tech just isn't good enough to out weigh the ergonomic and size ...Read more

From the listing

What the seller says

  • Brushless motor of the car polisher is made for efficient performance and runtime
  • 7-inch backing plate of the variable speed polisher is recommended for most applications
  • DEWALT polisher features no-load speed of 800-2200 RPM for all types of applications
  • Variable speed on the trigger and dial helps to better control the tool during every step of the application
  • Rubber gear case overmold reduces surface imerfections and improves gripping surface
  • Can be held via the front grip or side handle

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