I have a dewalt dwe402 4 1/2 inch. with this 3 by 5/8 inch work on it?

Yes. It will work on this grinder as it has a 5/8 spindle and its 3" diameter is less than the max 4/12". You'll have no problem.

Would this be good to remove bad roll on bed liner from a truck?

It is more common to use a chemical stripper and then various sanding stages. Using a knotted brush is going to load up and leave surface marks that will have to be sanded and then repainted to match the vehicles surface, which is where you will be with chemical stripping. Either way a whole painted bedliner removal is going to be a big job. If the bed was not prepped properly then the coating may come off easier.

Would this be suitable to removing a thin concrete overlay from a concrete driveway without removing too much of the underlying broom finish,?

Possibly. It would require a good touch. If the overlay was softer or not married into the brush coat too much. I would do a test patch.

Will this remove crystalized roofing tar and/or waterproofing? i plan on buy a skil 9296-01 to us with this brush to clean my concrete roof.

The DW4910 has not been tested for this application. It is ideal for industrial type work on metal.

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Dewalt Metal 3-Inch Wire Cup Brush, Knotted, DW4910

Product ID: 436207686

Details

Brand
DEWALT
Bristle type
Knotted
Grit material
Carbon Steel
Material
Carbon Steel
Product dimensions
7.6L x 7.6W

🔥Knotted carbon steel for heavy-duty removal

⚙️3-inch diameter for precision

🛠️5/8-11 arbor fits most grinders

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Description

⚡ Power through rust and scale like a pro with Dewalt’s knotted wire brush!

DURABILITY MEETS SAFETY - 100% wire inspection and robust construction for long-lasting, reliable use.
BALANCED SMOOTH OPERATION - Internal holding plate ensures steady, vibration-free performance at high speeds.
PROFESSIONAL GRADE FINISH PREP - Ideal for metalworking, welding prep, and fabrication projects demanding quality results.
HEAVY DUTY RUST PAINT REMOVAL - Aggressively strips rust, weld scale, and old paint with knotted carbon steel wires.
UNIVERSAL GRINDER COMPATIBILITY - Fits standard 5/8-11 arbor grinders for seamless tool integration.

The Dewalt DW4910 3-inch knotted wire cup brush is engineered for heavy-duty surface preparation, featuring durable carbon steel wires and a secure internal holding plate for balanced, smooth operation. Compatible with most angle grinders using a 5/8-11 arbor, it excels at removing rust, paint, and weld scale efficiently, making it a trusted choice for professional metalworkers and fabricators seeking reliable, long-lasting performance.

Specifications

ASIN	B00004RHAL
ASIN	B00004RHAL
Best Sellers Rank	#82,514 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #132 in Hand Wire Brushes
Brand Name	DEWALT
Bristle Type	Knotted
Color	Metal
Compatible Material	Stainless Steel
Country Of Origin	China
Country of origin	China
Customer Reviews	4.7 4.7 out of 5 stars (2,679)
Customer reviews	4.7 4.7 out of 5 stars (2,679)
Date First Available	7 August 2012
Department	Unisex Adult
Global Trade Identification Number	00028874049109
Grit Material Type	Carbon Steel
Grit Type	Coarse
Included Components	3IN KNOTTED CUP BRUSH
Is Discontinued By Manufacturer	No
Item Diameter	3 Inches
Item Dimensions	7.6 x 1.6 x 0.3 centimeters
Item Dimensions L x W	7.6L x 7.6W centimeters
Item Display Dimensions	10.7 x 9.9 x 4.3 centimeters
Item Type Name	3IN KNOTTED CUP BRUSH
Item Weight	227 g
Item model number	DW4910
Manufacturer	Dewalt
Manufacturer	Dewalt
Material Type	Carbon Steel
Model	DW4910
Number of Items	1
Number of Packs	1
Number of Pieces	1
Part Number	Dewalt - DW4910
Product Dimensions	7.62 x 1.59 x 0.25 cm; 226.8 g
Recommended Uses For Product	Grinding, Paint Removal, Rust Removal
UPC	028874049109
Unit Count	1 Count

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R931

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

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