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The DEWALT DCM849B is a brushless 7-inch rotary polisher with 800-2,200 RPM variable speed, ideal for cars, boats, and fiberglass.
Categories : tools
SKU : WOR-TOO-232
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This 7-inch rotary polisher from DEWALT's XR line uses a brushless motor for efficient performance and longer runtime. The variable speed trigger and dial deliver 800-2,200 RPM, giving you control for polishing cars, headlights, windshields, fiberglass, and gelcoat. The included 7-inch backing plate is suited to most applications.
To swap backing plates, remove the battery, hold the spindle with a wrench, and twist the backing plate counterclockwise. Install the new backing plate and secure it. Always use a backing plate that matches your pad's mounting system.
The DCM849B uses a 7-inch backing plate and is compatible with 7-inch hook-and-loop pads for most polishing and waxing tasks. For smaller pads, you'll need a smaller backing plate to maintain proper balance.
The trigger and dial let you set the speed precisely. Use slower speeds for applying product, then increase speed for cutting or polishing. This control makes the DCM849B suitable for beginners and pros.
The rubber gear case overmold reduces imperfections and improves grip. Choose between the front grip or side handle for comfort and control.
Brushless motor: More efficient, longer runtime.
Variable speed 800-2,200 RPM: Match speed to the application.
7-inch backing plate: Ideal for most polishing jobs.
Rubber gear case overmold: Better grip and surface protection.
Front grip or side handle: Comfortable operation in any position.
Grip: Front grip or side handle
Model: DCM849B
Motor: Brushless
Voltage: 20V MAX
Includes: Tool only (battery and charger not included)
Speed Range: 800-2,200 RPM
Product Type: Rotary Polisher
Backing Plate: 7-inch
Seller: Workbench World
MPN: DCM849B
A rotary polisher gives you the power to remove oxidation, swirl marks, and light scratches. The DCM849B makes those results easier to achieve.
Start at low speed to spread compound, then increase to 1,800-2,200 RPM for cutting action. The dial and trigger work together for precise control.
For polish and wax, use a 7-inch foam pad with hook-and-loop backing. For tight areas, switch to a 5-inch backing plate and smaller pad.
Always keep the polisher moving to avoid heat build-up and paint damage. Use overlapping passes and wipe off residue frequently.
Remove the battery, hold the spindle with a wrench, and twist the backing plate off. Install the new backing plate hand-tight, then secure it with the spindle lock if needed.
The included 7-inch backing plate fits 7-inch hook-and-loop pads. You can use smaller pads with a smaller backing plate for detailed work.
Yes, the variable speed feature allows you to start slow and increase speed as needed for safe polishing, waxing, and paint correction.
Yes, the DCM849B is sold without a battery or charger.
I detail cars for a living and this polisher is a game changer. The variable speed is spot on and it feels balanced in hand. Battery life is good for a cordless.
This thing is sick! I polished my car and it came out like glass.
It's a well made polisher but it's a bit heavy for me.
I used it on my boat and it worked well. Took some time but the finish is great.
It works but the battery drains fast.
I've been polishing cars since the 70s. This is the best one I've used. It's easy to control and doesn't sling compound everywhere.
This polisher is amazing.
It does a great job but the price is high without a battery.
I bought this for my side hustle and it's already paid for itself. The brushless motor is powerful and it feels great in the hand. Even my neighbor asked to borrow it.
I've had mine for three months. It still works like new. The rubber backing plate is durable. I use it on fiberglass and it gives a nice shine.
It's easy to use. I like the different speed settings.
This polisher exceeded my expectations. The LED light helps a lot. I can see the swirls before they disappear.
Does what it should.
I used this on my SUV and it buffed out all the scratches. The cordless design is so convenient. I'm definitely a convert.
