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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Description

🛠️ Elevate your cleanup game—because your tools should work as hard as you do.

PRECISION 3 INCH SIZE - Compact diameter ensures access to tight spots without sacrificing efficiency.
QUALITY YOU CAN TRUST - 100% wire inspection and DeWalt’s rigorous standards mean durability that won’t quit.
VERSATILE CLEANING POWER - Ideal for grinding, paint stripping, and rust removal—your all-in-one restoration tool.
HEAVY DUTY MATERIAL REMOVAL - Knotted carbon steel wires tackle rust, paint, and grime with unmatched power.
ENGINEERED FOR SAFETY BALANCE - Internal holding plate guarantees consistent rotation and smooth operation every time.

The DEWALT DW4910 is a 3-inch knotted cup brush made from carbon steel, designed for heavy material removal including rust, paint, and general cleaning. Featuring an internal holding plate for balanced, smooth performance and 100% wire inspection, it meets demanding quality standards to deliver reliable, professional-grade results.

Specifications

Colour	Metal
Grit type	Coarse
Unit count	1.0 Count
Number of pieces	1
Recommended uses for product	Grinding, Paint Removal, Rust Removal
Manufacturer	DeWalt
UPC	028874049109
Item diameter	3 Inches
Global Trade Identification Number	00028874049109
Part Number	Dewalt - DW4910
Item model number	DW4910
Size	Pack of 1
Finish	Brushed
Power Source	Corded Electric
Item Package Quantity	1
Cutting Diameter	3 Inches
Measurement System	English
Included Components	DW4910 - 3 in. x 5/8 "-11 Knotted Cup Brush Carbon Steel .020"
Batteries included?	No
Batteries Required?	No
Item Weight	227 g

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