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DEWALT

DEWALT 20V MAX* XR Cordless Polisher, Rotary, Variable Speed, 7-Inch, 180 mm, Tool Only (DCM849B)

  • Based on 2,028 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Oct 27
Order within 9 hours and 24 minutes
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Features

  • 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

Description

This 7-inch Rotary Car Polisher features a brushless motor for efficient performance and runtime. No-load speed of 800-2200 RPM with the variable-speed trigger and dial allow for use on cars, headlights, windshields, fiber glass, gelcoat, and for glass-polishing applications. The included 7-inch backing plate is recommended for most applications.

Brand: DEWALT


Included Components: Polisher; 7" backing plate; Side Handle; Bail Handle


Material: Blend


Color: Multi


Product Dimensions: 17.1"D x 7.3"W x 6"H


Brand Name: DEWALT


Included Components: Polisher; 7" backing plate; Side Handle; Bail Handle


Global Trade Identification Number: 62


UPC: 885911621762


Unit Count: 1 Count


Number of Items: 1


Number of Packs: 1


Item Type Name: rotary polisher


Manufacturer: DEWALT


Model Number: DCM849B


Manufacturer Part Number: DCM849B


Manufacturer Warranty Description: 1 yr warranty on material and workmanship


Power Source: Battery Powered


Specific Uses For Product: Polisher


Speed: 2200 rpm


Amperage: 1.5 A


Voltage: 20 volts


Material Type: Blend


Color: Multi


Item Dimensions D x W x H: 17.1"D x 7.3"W x 6"H


Item Weight: 4.8 pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • This is perfect for polishing cars
This works great, cordless so its very portable low noise looks great like all Dewalt products very comfortable handle and adjustable the speed can go so slow you can almost count the rpm's if you burn paint with this you are trying to paint comes out perfect and a glass smooth finish. gets rid of fine scratches for a mirror like finish. I am extremely happy with the purchase of this and recommend it to any serious car detail-er or paint finisher speed adjustability is easy and makes working fast and trouble free. I could go on and on, I have been wanting one of these for a very long time and finally got one it will make my car look better not to mention the money making opportunities it could also bring If you are at all thinking about getting one get the Dewalt it's top of the line, I have a collecetion of Dewalt cordless tool so yes I am bias but it is because they are the best. ... show more
Reviewed in the United States on April 24, 2026 by Blade
    • Excellent tool
Excellent tool works well ,has speed control
Reviewed in the United States on August 21, 2026 by John Sheridan Jr
    • Beast! Great product! So reliable.
Review Image by Matan Uziel
Review Image by Matan Uziel
What a great product. Makes my marble so shine. The device is lightweight but have a lot of power. I have the 6.0AH 20V XR battery. That’s a beast!
Reviewed in the United States on September 13, 2026 by Matan Uziel
    • Powerful Cordless Polisher for Professional Results
This cordless polisher is an absolute game-changer when it comes to getting that perfect shine on your car or any surface that needs a good buffing. Let me tell you, this tool is a beast! The DEWALT 20V MAX* XR Cordless Polisher delivers some serious power without being tethered to a cord. The variable speed settings give you the flexibility to tackle different projects with ease, and the 7-inch size covers a good amount of surface area with each pass. One tiny downside is that since it's a tool-only option, you'll need to invest in batteries and a charger if you don't already have them. But trust me, once you experience the freedom of cordless polishing with this bad boy, you won't look back. It's like having a professional detailing service right at your fingertips. Smooth, efficient, and reliable - this polisher is a must-have for anyone serious about getting top-notch results. ... show more
Reviewed in the United States on November 28, 2025 by Cartina Keeton
    • Satisfied
Arrived and worked great. I would have preferred that it was shipped in something other than the retail box so you couldn’t tell what it was sitting on my porch. But all is well that ends well.
Reviewed in the United States on September 3, 2026 by Reviewer
    • Worth it!!
Happy to have this! It gets a little heavy when used for a long time especially with a battery. Otherwise, it works wonders. Worth the money!
Reviewed in the United States on June 4, 2026 by Nick G.
    • Works great. Have back up batteries ready to go.
I love this buffer. The only problem is a fully charged battery only lasts about 10 min so have back up batteries ready to go . Much better to work with at this at our professional body shop.
Reviewed in the United States on May 27, 2026 by Amazon Customer
    • Revolutionizing Polishing with DEWALT 20V MAX XR Cordless Polisher
The DEWALT 20V MAX XR Cordless Polisher (DCM849B) redefines the polishing tool landscape with its innovative features. Its variable-speed control guarantees flawless results on cars, boats, and metal surfaces. Enjoy unrestricted movement thanks to the cordless design, coupled with the 7-inch pad for quick coverage. Despite its light build, this polisher packs a punch, serving professionals and DIYers alike. Benefit from extended battery life and a comfortable grip for effortless polishing. This top-notch tool easily earns a five-star rating and comes highly recommended for anyone seeking a powerful and user-friendly polishing experience. ... show more
Reviewed in the United States on July 21, 2025 by Sue Harnas

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