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DEWALT Wire Cup Brush, Knotted, 3-Inch (DW4910)

4.7 4.7 out of 5 stars 2,606 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Abrasive Cup Brushes by DEWALT

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Purchase options and add-ons

Brand DEWALT
Grit Material Carbon Steel
Bristle Type Crimped Wire
Product Dimensions 3"L x 3"W
Compatible Material Alloy Steel

About this item

  • 3x 5/8-11 Knotted cup brush, carbon steel, Knotted wire is for heavy material removal, Requires adapter
  • Adds Extra shine to your product
  • Manufactured in China
  • Constructed with internal holding plate
  • Plate ensures consistency and safety
  • Wire is 100-percent inspected
  • Meets demanding quality specifications
  • Provides even balance and smooth performance
See more product details

Customer ratings by feature

Value for money
4.7 4.7
Durability
4.7 4.7
Longevity
4.6 4.6

Frequently bought together

$10.48
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$11.39
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This Item
DEWALT Wire Cup Brush, Knotted, 3-Inch (DW4910)
DEWALT Wire Cup Brush, Knotted, 3-Inch (DW4910)
Recommendations
3 Inch Coarse Twisted Knotted Wire Wheel Brush for Angle Grinder, 5/8 Inch-11 Threaded Arbor, WENHUALI 5 Pack 0.020" Carbon Steel Angle Grinder Wire Wheel for Deep Sanding Heavy Rust, Paint.
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DEWALT DW4922 5-Inch Crimped Cup Brush/Carbon Steel 5/8-Inch-11 Arbor .020-Inch
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Price-44% $10.48
List:$18.78
$15.99-15% $24.37
List:$28.68
-25% $36.29
List:$48.39
$26.99$21.99
Delivery
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Customer Ratings
Sold By
Amazon.com
LANO Direct
Amazon.com
Amazon.com
Rocaris Direct
AUPREX
grit material
Carbon Steel
Carbon Steel
Carbon,Carbon Steel,Steel
Carbon Steel
Steel
Carbon Steel
material
Carbon Steel
Carbon Steel
Carbon Steel
Alloy Steel
Alloy Steel
compatible material
Alloy Steel
Alloy Steel
Alloy Steel
Alloy Steel
Metal, Alloy Steel, Wood
Alloy Steel
number of pieces
1
5
1
1
8
1
bristle type
Crimped Wire
Coarse Twisted Knotted Steel
Crimped Wire
Knotted wire
Knotted Wire

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DEWALT Wire Cup Brush, Knotted, 3-Inch (DW4910)


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From the manufacturer

dewalt power tool accessories

Product Description

Product Description

DEWALT wire cup brush, Knotted, 3-inch (DW4910)

From the Manufacturer

DEWALT DW4910 3" x 5/8"-11 Knotted Cup Brush/Carbon Steel .020"

Customer reviews

4.7 out of 5 stars
4.7 out of 5
2,606 global ratings

Customers say

Customers like the durability, performance, rust removal, quality and value of the wire cup brush. They mention that it shows hardly any wear after 20 hours of use, it works superbly and that it takes off heavy rust quickly. They appreciate the value for money.

AI-generated from the text of customer reviews

182 customers mention169 positive13 negative

Customers are satisfied with the durability of the abrasive brush. They mention that the build quality is great, the knotted wire design held up well, and the tool shows hardly any wear after 20 hours of use. The wires are knotted and do not come apart like the non-knotted attachment. They take a lot of abuse and don't lose strands easily. Customers also appreciate that the brush doesn't constantly shed wire shards. Overall, customers find the product to be a very nice product.

"This piece worked well and fit on my DEWALT! It is sturdy and durable, 10/10" Read more

"Nice heavy construction with the durability to put in that work can out last multiple work jobs you do" Read more

"...They take alot of abuse and don’t lose strands easily like the cheaper ones from harbor freight. Buy with confidence." Read more

"Excellent quality!" Read more

164 customers mention159 positive5 negative

Customers are satisfied with the performance of the abrasive brush. They mention that it does its job superbly, without hurling wires at them. Customers also say that the brush is efficient for this use and works better on flat surfaces. Overall, customers are happy with their purchase and recommend it to others.

"This piece worked well and fit on my DEWALT! It is sturdy and durable, 10/10" Read more

"This worked very well in My hand held grinder while cleaning my rolling chassis frame" Read more

"Works great. Yes making a mess with this attachment. Work gets done faster. Vacuum cleaner a must.👍..." Read more

"It really works good. I had some sealant leaks on the basement concrete wall that looked really nasty...." Read more

79 customers mention73 positive6 negative

Customers are satisfied with the rust removal capabilities of the abrasive brush. They mention that it works well for removing rust and powder coating from a frame. The brush is perfect for cleaning rusty stains, dirt stains and melting right through rust. It holds up well for surface rust, old paint removal on truck frames, and oxidation quickly. It also works well to clean the mounting surface of the wheel.

"...It takes out the weld spatter just fine and also cleans off light rusting on the steel." Read more

"...The brush is perfect for cleaning the rusty stains, dirt stains etc...." Read more

"...This is way more effective at removing rust...." Read more

"...Though this worked great for removing rust from a frame, I'm not sure if this design is ideal for cleaning welds...." Read more

59 customers mention54 positive5 negative

Customers are satisfied with the quality of the abrasive brush. They mention that it does a great job stripping paint off a metal chair, and is very efficient in removing paint. It is fantastic for removing rust and can also take off paint. The brush is great for cleaning up welds and will certainly strip off thick paint or coatings. It also cleans slag quickly and doesn't fray.

"I use this to clean off welds before paining. It takes out the weld spatter just fine and also cleans off light rusting on the steel." Read more

"...It can strip in 15 minutes what it would take 1-2 hours to do with a flap disc, sandpaper, or solvents...." Read more

"...It only took a few minutes to easily and thoroughly clean the blades, ready for sharpening and then balancing...." Read more

"...The cup design is ideal for this purpose as it allows you to get into nooks and crannies as well as cover a wider area when handling flat surfaces...." Read more

54 customers mention50 positive4 negative

Customers appreciate the value of the abrasive brush. For example, they mention it's a great product at a reasonable price. Some say it'll last a long time and is heavy duty. Overall, most are happy with their purchase and recommend it to others.

"...But on mild steel, DOM etc it is a great budget buy." Read more

"...That alone is worth the higher cost (really not much at all) of these cupped wire wheels...." Read more

"...It does exactly what it should at a great price." Read more

"Great Value for the price with the Dewalt Knotted Cup wire brush...." Read more

18 customers mention18 positive0 negative

Customers are satisfied with the speed of the abrasive brush. They mention that it runs smoothly and gets the job done very fast. Some say that it works great at slower speeds.

"Works great. Yes making a mess with this attachment. Work gets done faster. Vacuum cleaner a must.👍..." Read more

"...It ends up acting more like a disk. But good at slower speeds." Read more

"...It does the job well and you get a lot of mileage out of them!!!!! Comes fast too!!" Read more

"...did the job in about 20minutes and with faster and better results than if i did it by hand." Read more

16 customers mention16 positive0 negative

Customers find the abrasive brush easy to use. They mention it's convenient, and makes the process a whole lot easier. Customers also say it'll hold up well, and is a handy tool to have.

"Dewalt quality! Easy to put on my angle grinder. Used to strip off some old paint and this made it a breeze." Read more

"...It makes it so much easier than using a wire brush or circular wire wheel. He angle is perfect and it is very sturdy but doesn’t east into the metal...." Read more

"...Can easily go over nuts and and around them with the cup shape." Read more

"Easy to installFast removal of rust, paint or dirt!" Read more

32 customers mention22 positive10 negative

Customers are mixed about the wires of the abrasive brush. Some mention that it performs great without loosing wires, while others say that some pieces of wire will come off and break off easily.

"...Plus the wire bristles don’t fly off and embed themselves in your groin!" Read more

"...The cup design sheds way fewer wires than the wheel design I have always used up until to now!..." Read more

"...Occasionally small fragments of wire will detach from the brush, and at 12000RPM they pack a wallop...." Read more

"...It performs better because the wires are knotted and does not come apart like the non-knotted attachment...." Read more

Did the job
5 Stars
Did the job
It really works good. I had some sealant leaks on the basement concrete wall that looked really nasty. I ordered this brush to clean the surface.It did cleaned the most of it but some of the stains were hard to remove with this brush. So, those places I used the angle grinder with Concrete/Masonry grinding blade. That helped finish the job. Mainly, the grinding blade does the coarse cleaning and the brush does the fine cleaning. If you are not careful with the grinding blade it would cut groves in the concrete. The brush is perfect for cleaning the rusty stains, dirt stains etc. One thing to keep in mind is that when using this brush it will create a lot of dust (cement) particles in the air and it will spread all over the area. I did not expect it to be that fine dust. I had to clean the stuff on other part of the basement as well along with pressure washing the basement floor as it made a mess.Did a great job, see the pictures.
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Top reviews from other countries

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Ricardo E.
5.0 out of 5 stars Gran durabilidad, construido perfectamente.
Reviewed in Mexico on June 18, 2020
One person found this helpful
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Amazon Customer
5.0 out of 5 stars ... day for a full week and it still worked great. I must say I have never had a ...
Reviewed in Canada on June 4, 2017
Ruby S.
3.0 out of 5 stars Not for aus tools
Reviewed in Australia on March 16, 2024
Arturo Basurto Gonzalez
5.0 out of 5 stars Tamaño muy práctico
Reviewed in Mexico on February 11, 2024
gerard
5.0 out of 5 stars Five Stars
Reviewed in Canada on January 26, 2018