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

Sent it back wobble , unbalanced

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.

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!

I used one of these grinding wheels to level out some uneven concrete. They ground it down very well, taking off even more material in a shorter time than I would have expected. A good value also.Highly recommended.

The embedded diamonds are spars and straite the concrete as you grind it. If youre just rough grinding, and dont need them to last very long, these work well enough.

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

Very aggressive. Took down granite and flag a stone quickly

Bought this two pack to remove tile morter from underlayment. Used a 4 1/2 inch angle grinder fitted with a dust shield and shop vac. Removed 200 square feet of morter using one wheel! Wheel still has some life left. Very satisfied.

Good value. Works as intended with a predictable life.

Weak