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

Good product for price! Better price than box stores and same quality

Attempted to use to remove thinset from concrete. Hardly any diamonds on the cutting wheel, was barely removing product, job would have taken forever. Not worth the hassle. ended up buying a Norton wheel for $45, cut right through the thinset no problem.

Used to grind down concrete pavement, works great

Works great to remove concrete and glue from subfloor. Hard to mount on angle grinder, may never get it off.

What I like about this 4” grinder disc is, it fits perfect on the 4 1/2 grinder. I used the disc to clean up old grout and tile adhesive. Cleans up excellent. I live in Puerto Rico and got it in a week.

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.

So much better then the $35 each ones I’ve purchased in the past. Great value.

Dont buy these they dont work on a 4 1/2 grinder the cup is to small for the nut and they dont have much diamond in the blade didnt grind at all

Grinding mortar

Perfect size. Strong and durable. Can’t beat the price.