Erduoduo 2 Pack 4 Inch Diamond Cup Grinding Wheel 12 Segs Heavy Duty Angle Grinder Wheels for Angle Grinder

Longevidad!

I bought these to level out some cracked concrete for a patch and they are quite effective.

The product worked like a champ eating through the concrete. No issues for mine.

Did my garage with 1 but purchased 3

Did a great job removing paint from cement porch.

I purchased these grinding cups to remove about 100 sq ft of tile mortar from my concrete basement floor. I use these cups on a 4 1/2 inch black and decker corded angle grinder with a cheap dust shroud. The quality for the value on these is great. Each cup took off approximately 50 ft.² of mortar.

I needed something that would chew through large roots that are higher than ground level. A YouTube video led me to this design. Oh wow! This is an amazing find. These puppies are sharp and do a great job! Would fully recommend for a job like mine.

This removed the high side from a crack in my garage floor, about 6 feet long with a high side of 1/4-inch in less that 15 minutes.

I had to remove about 3/4 of concrete bonded to an older concrete foundation. The newer concrete added over the older concrete foundation was securely bonded. I could not chip it off. Grinding was the only method for removal. I had about 4 sqft of 3/4 material to remove. I ended up using both grinding wheels and each still has some amount of usefulness left. I kept them just in case I needed to remove anymore material. I was very impressed with how they performed.

Working well for a great price. Expected them to fall apart quickly, and they’re not. Using them to grind cracks in a basement floor. Pleased for the price!