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DEWALT DW4775 7-Inch Double Row Diamond Cup Grinding Wheel Blister

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4.6 401 ratings

$71.98

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Purchase options and add-ons

Grit Material	Diamond
Product Dimensions	7"L x 7"W
Brand	DEWALT
Grit Number	180
Construction Type	Grinding

About this item

High Diamond concentration for long life and aggressive material removal
Large grinding segments with heat treated steel bodies
Arbor diameter 5/8 - 11"
Max RPM 8,600

› See more product details

Customer ratings by feature

Durability

4.2

Value for money

4.2

Longevity

4.0

See all reviews

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Product information

Technical Details

Grit Material

‎Diamond

Product Dimensions

‎7"L x 7"W

Brand

‎DEWALT

Grit Number

‎180

Construction Type

‎Grinding

Maximum Rotational Speed

‎8600 RPM

Manufacturer

‎DEWALT

Part Number

‎DW4775

Item Weight

‎1 pounds

Item model number

‎DW4775

Is Discontinued By Manufacturer

‎No

Material

‎Diamond

Power Source

‎Corded-electric

Item Package Quantity

‎1

Cutting Diameter

‎7 Inches

Included Components

‎attachments

Batteries Included?

‎No

Batteries Required?

‎No

Assembled Diameter

‎7 Inches

Additional Information

ASIN

B002HN3SUC

Customer Reviews

4.6 401 ratings

4.6 out of 5 stars

Best Sellers Rank

#101,750 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
#63 in Surface Grinding Wheels

Date First Available

July 15, 2009

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.

Product Warranty: For warranty information about this product, please click here

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Product Description

DEWALT DW4775 7" double row diamond cup grinding wheel blister; High Diamond concentration for long life and aggressive material removal. Features large grinding segments with heat treated steel bodies which provides increases durability and wheel life. Double rim provides longer life and more aggressive material removal. Diameter 7", Arbor diameter 5/8 - 11", Max RPM 8,600. Designed for General Purpose masonry grinding; dry grinding of concrete and other masonry materials, and for smoothing of uneven surfaces.

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Top Brand: DEWALT

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	This Item DEWALT DW4775 7-Inch Double Row Diamond Cup Grinding Wheel Blister	Recommendations WHIRLWIND USA Whirlwind USA GSD 7 in. Diamond Grinding Cup Wheel Double Row Standard Higher Diamond Concentration with 5/8-Inch 11mm Thread (7")	dummy ACE-TOOLS Ace-Tools Concrete Grinding Wheel 4 inch for Angle Grinder - Diamond Cup Wheel for Grinding Concrete, Cement, Masonry Stones, Granite, Marble - 24 Segment Turbo Concrete Grinder Wheel 7/8" Arbor Hole	dummy DiamaPro Systems DT-CW-7-24SEG-T Threaded 7 Inch 24 Segment Turbo Concrete Grinding Cup Wheel for Grinding, Leveling, & Removing Glue/Coating	dummy EDiamondTools 7" Diamond Grinding Wheels for Concrete or Masonry, 24 Double Row Segments, 30/40 Grit, Medium Bond, 5/8"-11 Arbor	dummy JOHAHTANG 4 Inch Concrete Grinding Wheel, 6Pcs Concrete Turbo Diamond Grinding Cup Wheels for Concrete Granite Marble Masonry Stone, 12 Segs Heavy Duty Angle Grinder Wheels
	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart
Price	$69.00	$38.99	$9.99	$64.99	-20% $38.99 List: $48.99	$24.85
Delivery	Get it as soon as Tuesday, May 14	Get it as soon as Monday, May 13	Get it as soon as Tuesday, May 14	Get it as soon as Monday, May 13	Get it as soon as Tuesday, May 14	Get it as soon as Monday, May 13
Customer Ratings	4.6401	4.573	3.88	4.941	4.7294	4.383
Value for money	4.2	—	—	—	4.6	4.3
Longevity	4.0	—	—	—	4.5	4.1
Sold By	1TopTools	Whirlwind USA Inc	ACE-TOOLS-US	DiamaPro Systems	E Diamond Tools	H-TANG
number of items	1	—	1	1	—	—
grit material	Diamond	Diamond, Ceramic	Diamond	Diamond	Diamond	Diamond
grit type	—	—	Coarse	Light	Coarse	—
grit number	180	180	40	24	30	180
compatible devices	—	—	Angle Grinder	Any 7" Angle Grinder with a 5/8-11 threaded arbor	Angle Grinder	Angle Grinder
construction type	Grinding	Grinding	Super-Abrasive	Grinding	Grinding	Grinding
standard identifier	DW4775	GSD	—	DT CW 7-24SEG	—	—

Customer reviews

4.6 out of 5

401 global ratings

How customer reviews and ratings work

Customers say

Customers like the quality, durability, ease of removal, speed, and value of the abrasive wheels. They mention that it works well, it holds up great, and that it removes material in a hurry. They appreciate the great price.

AI-generated from the text of customer reviews

44 customers mention44 positive0 negative

Customers are satisfied with the quality of the abrasive wheels. They mention that it works well, has a concentric ring, and gives good performance when grinding. Some say that the wheel runs true and balanced. Overall, most are happy with the product's performance and durability.

"...I think that it's over priced, but it works well and that's what I want." Read more

"This style wheel with concentric rings gives good performance and long life when grinding surfaces flat...." Read more

"great tool works great" Read more

"...Until the end of this grueling job it was still grinding fairly smoothly, but the started "hopping" which is a good sign you've worn it out!..." Read more

18 customers mention18 positive0 negative

Customers are satisfied with the durability of the abrasive wheels. They mention that it works great and holds up great, and it does not show any wear after grinding for a long time. The wheels are well-made and give good performance when grinding surfaces flat. Some customers also say that the wheels rip through thin set.

"...wheel with concentric rings gives good performance and long life when grinding surfaces flat...." Read more

"...No real wear to the grinding wheel and the wife is happy that the tripping hazard is gone in her garage bay. At less than $40 a great deal." Read more

"...This is well made and attached directly onto my grinder with 5/8"-11 threads. The only bad thing to say is that it is not made in the U.S.A." Read more

"...It worked flawlessly and after 4 days of grinding showed no wear at all...." Read more

14 customers mention12 positive2 negative

Customers like the ease of removal with the abrasive wheel. They say it removes material in a hurry, removes concrete quickly, and works great for removing mortar from plywood. It provides a solid flat surface for grinder, making them easy to remove. Some say it's the best removal wheel they have ever used and works for painted flooring removal. It takes little pressure to remove thin-set mortar.

"...The wood came off relatively easy. The black/brown tar like mastic just would not come off...." Read more

"...Also works for painted flooring removal some lite glued and crack leveling. Very happy with this product." Read more

"...Once I had dragging issue solved wheel cut free with good removal rates." Read more

"Very aggressive cutter, takes little pressure to remove thin-set mortar. It will remove high spots in concrete quickly...." Read more

8 customers mention8 positive0 negative

Customers are satisfied with the speed of the abrasive wheels. They mention it grinds down concrete pretty quick, saves time, and is efficient. Some appreciate the fast shipping and the great price.

"Much faster than single row turbo style...." Read more

"...Will go a lot of miles/hours and it seems to grind fast enough. Can't say that I have a lot to compare to though. I'm not a dewalt suck up either." Read more

"...These wheels are very efficient and will last for a long time before they wear down. Have used them for over three years with great success...." Read more

"I put this on the dewalt grinder and it grinds down concrete pretty quick." Read more

6 customers mention6 positive0 negative

Customers appreciate the value of the abrasive wheels. They say it has a great price and is exactly as expected.

"...wheel because of it's admirable wear property, and the outstanding Amazon price." Read more

"...The price was fantastic compared to big box stores. Could not have done without it." Read more

"...It’s a decent price though and a reputable brand." Read more

"...a writer, there isn't much to say about this tool other than the pricing is great, and every Dewalt cup wheel we've gone through has lasted a long..." Read more

5 customers mention5 positive0 negative

Customers are satisfied with the performance of the abrasive wheels. They mention that it is a great grinding wheel that can really cut through a lot of concrete. They also say that it's an aggressive cutter that takes down the concrete.

"Very aggressive cutter, takes little pressure to remove thin-set mortar. It will remove high spots in concrete quickly...." Read more

"These last a long time and will really cut through alot of concrete...." Read more

"...Anyway the thing really takes down the concrete!" Read more

"Great grinding wheel. cut through the concrete quickly. Watch out for the dust storm though!!" Read more

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Top reviews from the United States

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Ed Evans

Exceeds expectations

Reviewed in the United States on November 20, 2023

Verified Purchase

I'm leveling my poorly poured backyard sidewalks, which was too big a job for this old man in the Sun. Using a right angle Makida cuts unwanted concrete from my sidewalk pretty well. I think that it's over priced, but it works well and that's what I want.

Helpful

Wojo

DeWalt is the standard for good performance and long life

Reviewed in the United States on November 29, 2018

Verified Purchase

This style wheel with concentric rings gives good performance and long life when grinding surfaces flat. The edge of the wheel works to grind into the adjacent surface as the tool and wheel are moved side-to-side. (Wheels with turbine vanes tend to be aggressive at taking down material but also tend to wear faster.) The edge of the wheel limits the amount of material that can be ground-away in a pass.
The 7" diameter wheel needs a powerful grinder to drive it. Match the RPM ratings.
This type of grinding can create a great deal of noise, flying debris and dust. Dust can be reduced by keeping the surface wet with flowing water. Eye and hearing protection for anyone in the area are a must.

5 people found this helpful

Helpful

jeremy garcia

great tool

Reviewed in the United States on August 5, 2021

Verified Purchase

great tool works great

Helpful

Stratcat

Effective Grinding Wheel

Reviewed in the United States on December 18, 2018

Verified Purchase

I used this product to grind off mastic after removing a wooden floor from concrete. The wood came off relatively easy. The black/brown tar like mastic just would not come off. I scraped and used a number of chemical cleaners and none would budge the mastic from the concrete. I thought I would give the Dewalt Diamond Cup grinding wheel. I also purchase the Makita dust shroud after reading many reviews which recommended it. I agree that the dust shroud is mandatory in using the grinding wheel. End result is that the grinding cup did remove the mastic. However, even with the grinding wheel, removing the mastic took a full day in the kitchen alone. We wound up hiring a professional to remove the mastic in the rest of the house. Ironically, that company used a Diamond Cup grinding wheel along with a commercial HEPA vacuum. The Dewalt Diamond Cup does work well for it's intended purpose. However, it's still a lot of work for the purpose I was using it for.

5 people found this helpful

Helpful

Dale V.

Great value, Long Life!

Reviewed in the United States on August 10, 2016

Verified Purchase

I probably should deduct a star because at the end of it's life it started to "chatter" due to uneven accelerated wear on one-half of the radius. That being said I was using a Milwaukee 15 amp 7-inch Beast, which is very heavy on the handle and it may have been my grinder rather than a fault with the wheel. It spent countless hours grinding an extremely pockmarked and uneven garage floor and then many more hours smoothing my "sloppy" re-surfacing with Cement-All (The hardest surfacing compound available today). Until the end of this grueling job it was still grinding fairly smoothly, but the started "hopping" which is a good sign you've worn it out! This wheel sells for $65 and up at the home improvement stores. I Highly recommend this particular wheel because of it's admirable wear property, and the outstanding Amazon price.

One person found this helpful

Helpful

Scott B

Great for fast removal of concrete.

Reviewed in the United States on July 14, 2020

Verified Purchase

Much faster than single row turbo style. I needed to remove 1.25" at one end of heaved concrete - did it in less than 2 hours by feathering it back about 10" X 8.5 feet. No real wear to the grinding wheel and the wife is happy that the tripping hazard is gone in her garage bay. At less than $40 a great deal.

Helpful

SID

Excellent Grinding Wheel

Reviewed in the United States on December 29, 2020

Verified Purchase

I am a retired contractor. I bought this Grinding wheel to remove thin set from 1,000 Square feet of floor space in my home. My method was to sponge water on to the floor and grind about 32 Sq. at a time. Thirty two sq. Ft. takes about 4 minutes with a 7 inch wheel on a 9 inch Bosch grinder. The thin set binds into the water for easy vacuuming with more water sponged on the floor and light broom to loosen heavier residue. I still have over 50% of the wheel depth left.

Helpful

Beamo

You get what you pay for.

Reviewed in the United States on October 31, 2016

Verified Purchase

I needed to grind a few trip hazards off of my concrete driveway, also so my snowblower wouldn't catch on them. Don't waste your money on a cheap (harbor freight) copy: there IS a difference. Shop around on the web, you can find a price close enough to the cheap one to make it a no-brainer. The dust is an issue, so use a mask or a vacuum-operated guard. If you let the grinder do the work and don't force it, this will take down some serious trip hazards. This is well made and attached directly onto my grinder with 5/8"-11 threads. The only bad thing to say is that it is not made in the U.S.A.

One person found this helpful

Helpful

Top reviews from other countries

Translate all reviews to English

Wendell

Real workhorse

Reviewed in Canada on February 23, 2023

Verified Purchase

Had to level off concrete floor in a new office renovation. Worked excellent and still in great condition after many hours of use.

ALFONSO SOLIS RANDALL

Funciona muy bien

Reviewed in Mexico on May 8, 2019

Verified Purchase

Muy buena calidad

Translate review to English

Great product balanced cuts well

Reviewed in Canada on August 8, 2021

Verified Purchase

Great product cuts well lasts a long time I have run this for over eight hours straight grinding away and it’s not even half worn out

Czechcan

Works very well

Reviewed in Canada on April 27, 2022

Verified Purchase

It takes off a lot of material in very short time.

Cliff

7-Inch Double Row Diamond Cup Grinding Wheel

Reviewed in Canada on June 18, 2022

Verified Purchase

worked well

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DEWALT DW4775 7-Inch Double Row Diamond Cup Grinding Wheel Blister

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