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4 Inch Turbo Row Diamond Cup Grinding Wheel Angle Grinder Disc
6 Hole Dust Extraction
Provide the optimal & necessary combination of allowable airflow and debris removeal. The air holes designed is help to maintain and cool the cutting pattern and reduce wear.
High-Grade Diamond
This diamond grinding wheel has a high diamond concentration for a long serving time and aggressive material removal which provides a very fast cutting action on masonry, stone and concrete.
Widely Application:
Suitable for dry or wet grinding of concrete, granite, stone, marble, tile, masonry and some other construction material to smooth uneven surfaces and remove flashing.
For your Safety:
We recommends the use of personal protective equipment:
- Eye protection (blinkers)
- Ear protection (ear sets)
- Hand protection (gloves)
- Lung protection (dust mask)
Package includes: 1* diamond grinding wheel
The Wilsons
August 16, 2025
About maybe 25-35 square feet into an almost 200 square foot job, once the initial abrasive granules on the surface wore down I thought to myself, "dummy, you should have bought two of these". Well... I finished the entire porch & believe that the wheel has enough to do another 200 square foot if not more. I'm not easily impressed & this product is a refreshing find. What in the world are people paying upwards & a bit over $50 for one of these??? The reviews are true, this does the job.
Eric
July 16, 2025
I bought this with the intention of using it to shave down the edge of a lifted concrete sidewalk section in front of my house. Having never attempted to grind concrete before I was not sure if it would work or how long it would last. I am happy to report that it worked extremely well! It is not as fast as a dedicated concrete grinding machine but my angle grinder and this grinding cup did the job in under 15 minutes for less than 10 bucks! The results are better looking than when the city comes and does the job and I didn't have to pay $300 which is a win-win in my book! As an added bonus I would estimate that after grinding down 2 feet of concrete by 1/2" the grinding cup still has about 50% of its life left. I am impressed with this product and would highly recommend it if you are looking for a cost effective and simple solution for grinding some concrete.
Soots
June 12, 2025
We recently had to replace about a thousand square feet of outdoor tile on a concrete slab. We had done a similar project two years ago on an adjacent area, so knowing what we were getting into, we bought several wheels to help remove the old thin set. We used a new DeWalt 13amp grinder with all of them. On the previous project we used the "4 inch Diamond Segment Grinding Cup Wheel Disc Grinder Concrete Granite Stone" (blue disc) at just over eleven dollars and it worked well and lasted for about 350 square feet. We decided that this time we would try several to see if we could get more square footage out of a blade or more importantly, if we could work less hard to remove the material (i.e. we hoped another blade would be more aggressive and reduce the effort needed). Following are all of the blades including the one this review is attached to. We hope this breakdown will help.DeWalt DW4774 4-1/2" Double Row:.This blade seemed to be the best of the bunch, but at thirty-five dollars, we question whether or not it was noticeably superior enough to justify the cost. As to durability, we finished the last 200 square feet of the project with this blade and it was still going strong which might be the justification for the price.OCR 4" Concrete Turbo Diamond Grinding Cup Wheel Three Row....:This wheel did very well and for the lower priced group lasted just shy of the 4" Diamond Segment Grinding Cup Wheel Disc... (Blue version).It ultimately lasted for about 300 square feet.4" Diamond Segment Grinding Cup Wheel Disc... (Blue version):We liked this one the best of the inexpensive group (and have ordered extras). It consistently got about 350 square feet and seemed to wear out evenly. A really good buy for the dollar.Whirlwind USA GPST 4.5" Heavy Duty Grinding Cup Wheel:This was the most expensive of the group and at first we were very disappointed in it. After using it for a while though, we came to realize it is better suited for polishing work rather than fast removal of large amounts of material. It did not seem to wear much at all for the work it did and we will look forward to using it when we need to provide a smooth finished surface. For just grinding, don't pay the high price, it is definitely not worth it.4" Diamond Segment Double Row Grinding Cup Wheel Disc.... (Black Version):This was the least competent of the bunch. It worked reasonably well but only lasted for about 200 square feet. At the end, it literally lost all of its teeth and was just a smooth flat wheel. The others in the twelve dollar range were much better buys.In summary, we feel that if you are only going to grind a smaller area of concrete (or like material) and it is not a massive project like ours, the inexpensive blades are a great buy and do just as good a job, if not better.
Jennifer B.
June 7, 2025
This is about 1/4 the price of the same item from the home improvement store with the blue sign. I figured I would give it a go and if it didn't work I would only be paying 25% more than buying the name brand version to start with. I've nearly completed my project and I can't tell that the grinding surface has worn significantly. I can see the sparkly diamonds embedded in the grinding surface. Pending it doesn't contain asbestos as a filler material, this thing is great.This thing blasts through concrete, concrete patch, and floor paint. I've even ground down a few nails that were driven into the concrete. I have wished it was a little less aggressive a few times. I've had best results allowing it to wind up to full speed and applying it to the floor with the wheel as level to the floor as possible. It doesn't seem to glaze the surface. I would say it leaves the floor somewhere around 60 grit roughness. I would be hard to use this to get a smooth enough surface for finishing if you're thinking about using it for that. It tends to bounce around some and leave ridges.This thing creates a huge cloud of dust. Wear a respirator and safety glasses for sure. I haven't tried a dust shroud but placing a vacuum near the grinding wheel is wholly ineffective at containing the dust. I wouldn't expect the dust shroud to be completely effective and I think it would make it hard to use the tool because you couldn't see.Also, for anyone vacuuming a lot of dust, a dust separator such as the one sold by the home improvement store with the orange sign really does work and keeps you from having to clean the filter on your vacuum nearly as much.
Zan
June 2, 2025
I used it to smooth out some concrete. I worked really well. I did 4 x 3 square and there's plenty left to do other projects.
Customer
May 18, 2025
Used this to remove paint from 160 sq ft of concrete. Worked perfectly and quickly. Was as good at the end of the job as the beginning. Recommend wet grinding or a vacuum shroud. Lots of dust.
Dan Ed
March 23, 2025
works good.
LeviReviewsIt
March 12, 2025
I'm currently renovating my basement, and the bathroom was finished with terracotta tiles. We were able to chip these up with a mallet and cold chisel, but once we got the tiles up the thinset was very uneven and we needed to level it out for a new subfloor. It was a small space (6x7 feet), so we didn't want to rent a tool from a hardware store, and decided to try this with my angle grinder. I was initially concerned with this because of the price, as all of the other grinding wheels are more expensive, but since it was a small space decided to give this a try. Fits my Makita BGA452Z grinder perfectly. Comes packaged in hard plastic, with some hilarious instructions (see the photo: "The safe use. It is forbidden to illegal"). Very effective, it makes a HUGE amount of dust - make sure you get a dust shroud.What I like- Very reasonably priced- Does what it is supposed to- Remained 'sharp' after grinding down about 42 square feet of thinsetWhat I dislike- Nothing. This is a great product.I imagine something priced like this would not last on bigger jobs, but it seemed pretty sharp after my job. All in all, I'm very happy with this purchase.
cranster
February 22, 2025
I bought this grinder for home use and always use with water dripping on surface to avoid dust and wear on the tool. It works perfectly and I can't even see any wear on it yet after heavy workout. Highly recommend.
William Carr
February 14, 2025
Works ok should have got the 5 inch one
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