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

Worked great at grinding my garage and drive way concrete to even out the surface.

To fix an area of concrete floor.

These do the job but I have no idea how long they will last. One thing I noted immediately was any paint they come in contact with will clog the cutting surface and must be scrapped off to continue.

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.

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.

Had to grind some filed stone around our front door way. Grinding wheel fit right into the angle grinder and worked very well and quickly to remove the stone needed for the clearance we desired. Appreciate the quick shipment and quality of grinding wheels. Lots of material left for future projects!

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.

Good item and good product

Good purchase!

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.