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Internet #203164128

Model #DWP849X

12 Amp 7 in./9 in. Variable Speed Polisher with Soft Start

  • 90-day money back guarantee
  • 1-year free service contract
  • 3-year limited warranty
  • See More Details

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Product Overview

The DEWALT DWP849X 7 in./9 in. Variable Speed Polisher with Soft Start features a powerful, 12 Amp, all ball-bearing construction motor for long life and durability. Electronic control maintains the specified speed under load, delivering the desired finish results, while the conveniently located variable speed dial lets you set the maximum speed from 0-600/3500 RPM for different materials and applications. A variable-speed trigger allows you to control speed from zero to the dialed maximum setting easily. Designed for efficiency, the polisher includes heat-treated, precision-cut steel gears for smooth operation and external brush caps for easy servicing, with a large spindle lock button for quick and simple backing plate changes. It also features a wool ingestion shield to increase your tool's life and reduce service costs for years of hassle-free use.
  • Includes polisher, hook and loop backing pad bale and straight side handles
  • 12.0 Amp, all ball-bearing construction ensures lasting use
  • Variable speed dial lets you match the speed to each unique application
  • Variable speed trigger allows for easy control
  • Precision-cut steel gears deliver smooth operation
  • Wool ingestion shield eliminates wool ingestion for longer tool life
  • Non-mar rubber gear case cover reduces surface imperfections and improves gripping surface
  • 90-day money back guarantee, 1-year free service contract and 3-year limited warranty
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Cordless/ CordedCordedCordedCordedCordless
Power Tool FeaturesRandom Orbit,Variable SpeedVariable SpeedLock On Switch,Variable SpeedAdjustable Handle Position,Variable Speed
Arbor Size5/16-245/8 in.-1105/8
Battery Amp Hours No Battery
Motor Type Brushless
Number of Total Batteries Included 0
View ProductView ProductView ProductView Product



Product Depth (in.)
21.73 in
Product Height (in.)
4.45 in
Product Width (in.)
8.98 in


Amperage (amps)
Arbor Size
5/8 in.-11
Color Family
Cord Length (ft.)
Corded Tool Type
Cordless/ Corded
Maximum Speed (rpm)
Power Tool Features
Variable Speed
Product Weight (lb.)
10.16 lb
Random orbit
Switch Type
Tools Product Type
Power Tool
Variable Speed

Warranty / Certifications

Certifications and Listings
No Certifications or Listings
Manufacturer Warranty
90 day money back guarantee/1 year free service contract/3 year limited warranty

Questions & Answers


Can this be used with an 8in pad using the back plate that it came with or can it only use 7 and 9 in pads?

Asked by Ared5 May 14, 2021

Where is the country of origin?

Asked by Larry April 5, 2021

Hi Larry, The unit DWP849X is made in China. We appreciate your question.

what is the proper extension cord to get for this polisher?

Asked by Jay August 26, 2020

I used a standard extension cord for it although if you use it near water you will need something with a protection breaker.

Can I attach a shurhold Brush to this polisher? HOW????

Asked by Jack August 6, 2020

We have not tested the DEWALT DWP849X with the shurhold brush.

Has anybody used this for hard water removal on Glass/Windows/shower walls?

Asked by Jose July 15, 2020

Has not been tested for this type of application. Unfortunately we are unable to recommend.

can this polisher use for shower door to remove hard water stain?

Asked by Ken November 25, 2019

Yes but you have to be gentle

I see one unbox of this product and this bring a foam pad and others don’t bring it. I want one whit the foampad

Asked by Vgautocare August 6, 2019

Please contact Home Depot for package contents.

can i use a 7in polishing pad with this polisher?

Asked by andy July 18, 2019

Yes. Just be cautious not to use it at too much of an angle. The 'yellow' from the hook and loop pad may mar the surface since the pad will not extend out past it.

Can you change out the base plate to other one? (like a 6 inch or 3 inch).

Asked by dan May 24, 2019

The Polishing pads with a diameter of 6", 7" or 9" (15.2, 17.8 or 22.9 cm) may be used with the DWP849 and DWP849X.

Could I use this with brass polish to polish brass?

Asked by Chris January 3, 2019

Could you remove the that it comes with attachment and replace it with a smaller one, like 4.0 or 4.5, to polish natural stone countertops?

12 Amp 7 in./9 in. Variable Speed Polisher with Soft Start - page 2

Customer Reviews

  • 4.8
    out of 192 reviews
  • 97% recommend this product
Filter by:
Showing 1-10 of 192 reviews
Great polisher... I was a little concerned that it was going to be a little heavy, but it's not....
Great polisher... I was a little concerned that it was going to be a little heavy, but it's not. Well balanced and easy to handle. I absolutely love the soft start on this polisher, and there is actually a bonus feature to that as well. Even if you have the RPM set higher then the lowest setting, you are still able to control a soft start with the finger trigger. As long as you don't pull the trigger the entire way back, you are able to control the speed with it. I Absolutely Love That. Best polisher I have ever used In my 35 years of being a car guy. I'm not a professional. If I was, this would be my go to polisher.
by Slick
My research & findings FYI
This is my 4 DeWalt corded power tool. (Ive been in the HVAC business for a number of years.). I’ve beat the heck out of these tools and they are utterly bulletproof & abundant in power. For example on the latter point: the 849 DeWalt buffer has a 12 amp motor whereas the Makita is an 8. I felt, after thorough research, that the Makita was too heavy. I don’t like heavy hunting rifles and I don’t like heavy power tools. I originally thought the DeWalt didn’t come with a pad nor a tube to help align the wool onto the pads. I also thought the DeWalt did not come with any pads; yet, I still chose it over the Makita. I was pleasantly surprised that not only did I get a nice pad butbI also got a nice alignment tool. (See pic) I’ve carefully ran the tool throughout all rpm ranges at each incremental settings. It works perfectly. It seems the natural frequency (a physics term that has to do with everything that moves- even swing sets-look up the term, if you’ve not taken a Physics class.). Seems to be at 1600rpm. That’s perfect! Also, I’ve observed that the motor and drive train appears to be perfectly balanced. ZERO VIBRATION @ all RPMS. Now, I bought this @ HD for 180. I got the bag elsewhere (HD didn’t carry it) I got the 24” DeWalt tool bag (tool measures 22”.) for 50. That’s ok. I paid 180. Makita wanted 230. 230-180=50. But Makita has better marketing and shows you the alignment tool- which DeWalt includes but doesn’t show. And DeWalt includes a buffing pad that isn’t show . (Makita definitely has a better marketing people working for them.). Now the Makita is “assembled in US”- which is import to me; nevertheless, I don’t buy heavy guns nor heavy tools. This DeWalt is a quality purchase that will last our lifetime. And it has externally replaceable brushes-a MUST for me.
by JayW
1 person found this helpful
What I was hoping for and more. Great sander for fiberglass and resin. I don't know anything abou...
What I was hoping for and more. Great sander for fiberglass and resin. I don't know anything about polishing cars or boats.
by makinitnotfakinit
The best polisher
This polisher is rated #1 because it is the best. It has a great balance, smoothness and the speed regulation is perfect under load.
by Rich
High Quality, Tough Construction
I purchased this Dewalt DWP849X Variable Speed Polisher with Soft Start last month for two jobs. First, I needed a 7 in, grinder to remove excess concrete on our patio slab for proper drainage. Standard grinders don't have soft start or variable speed which I needed for greater control of the $100 diamond grinding wheel. The DWP849X soft start, variable RPM, power and internal electronics to HOLD that RPM under load were invaluable and impressive. The unit sustained several days of grinding and sanding with the vibrations, dust, and heat generated from the heavy work loads. I covered the lint screen air intakes with a cotton cloth to filter some of the dust that wasn't blown away by my fans. It was the perfect grinder for the job. Afterwards, I cleaned the unit with compressed air, and she looks, starts, stops, and operates like new. Very tight and rugged unit. The primary purpose for the unit will be to clean, polish and buff our 26 gel-coat boat. I have no doubts that it will handle that duty with ease. The rubber head cover is a big plus and the large rounded head handle makes all the difference in control and user comfort. A great buy!!
by Darrell
19 people found this helpful
Dewalt buffer delivers productivity
The Dewalt buffer certainly held up to its description. Meeting all expectations and completion the job with no issues made my week. The Dewalt buffer was used for 3 days straight and preformed well during every hour of operation.
by Image05
12 people found this helpful
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Only the pads is not good...
Only the pads is not good
by HomeDepotCustomer
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Showing 1-10 of 192 reviews