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DEWALT

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

  • Based on 1,786 reviews
Condition: New
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$199.00 Why this price?
Memorial Day Sale · 43% off was $349.00

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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon
Arrives Friday, May 29
Order within 12 hours and 13 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


Power Source: Battery Powered


Specific Uses For Product: Polisher


Speed: 2200 RPM


Amperage: 1.5 Amps


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


Brand Name: DEWALT


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


Global Trade Identification Number: 62


UPC: 885911621762


Model Number: DCM849B


Manufacturer Part Number: DCM849B


Unit Count: 1.0 Count


Item Type Name: rotary polisher


Manufacturer: DEWALT


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 29

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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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews

    • 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
    • Versatile Cordless Rotary Polisher
The DEWALT DCM849B has truly won me over with its exceptional 20V MAX* XR power that guarantees reliable performance across a range of projects. Its variable speed control brings precision to every task, while the 7-inch size strikes the perfect balance for tackling larger endeavors. The top-notch build quality ensures long-lasting durability that instills trust. Whether you're a seasoned pro or a dedicated DIY enthusiast, this cordless rotary polisher stands out as a true game-changer. Highly recommended for its remarkable versatility and impressive performance! ... show more
Reviewed in the United States on November 6, 2025 by theresa harris
    • Lightweight and powerful cordless polisher
X features include a 7-inch pad that helps me complete projects faster. Even though it feels easy to hold, it delivers good performance whether you're a professional or working on home repairs. The battery lasts longer than I expected, and the grip feels comfortable for extended use. It’s a handy tool that I’ve been happy with and think others will find useful for their polishing needs. ... show more
Reviewed in the United States on April 17, 2026 by phyllis
    • Ultimate Polishing Power: DEWALT 20V MAX XR Cordless Polisher Review
The DEWALT 20V MAX XR Cordless Polisher (DCM849B) is a complete game-changer in the world of polishing tools. Offering variable-speed control for smooth and professional results on cars, boats, and metal surfaces, this polisher is a must-have. Its cordless design delivers unmatched freedom of movement, while the 7-inch pad ensures efficient coverage of large areas. Despite its lightweight build, this polisher packs a powerful punch, catering to professionals and DIY enthusiasts alike. Plus, its exceptional battery life and ergonomic grip make polishing effortless and comfortable. I absolutely love this product and wholeheartedly recommend it to anyone in need of a top-notch polishing tool. ... show more
Reviewed in the United States on July 2, 2025 by TONY PAYNE
    • 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
    • Handy cordless polisher for various surfaces
Almost perfect for quick jobs, this lightweight tool offers good power and a comfortable grip. Its 7-inch pad helps cover surfaces efficiently, making it a nice option for both professionals and casual users. I’ve appreciated the longer battery life, especially when working on larger areas. Overall, it’s a reliable, easy-to-handle device that has made my polishing tasks much smoother. ... show more
Reviewed in the United States on April 1, 2026 by TINA NELSON
    • Works well
Works well and product is as described.
Reviewed in the United States on May 9, 2026 by Tony McB
    • More powerful than expected.
This polisher has been a lifesaver for polishing the aluminum fuel tanks on my Freightliner Cascadia to a mirror shine. This cordless polisher is much lighter and more versatile than my corded polisher. It has as much power as my corded polisher. I can get almost an hour of constant runtime with three batteries. It is balanced well and has a smooth operation that is user-friendly. ... show more
Reviewed in the United States on April 15, 2026 by Todd Turner

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