SUNJOYCO 4" Concrete Grinding Wheel, Diamond Cup Wheel for Angle Grinder, 12 Segment Turbo Row Diamond Grinding Wheels for Polishing Cleaning Stone Concrete Surface, Cement, Marble, Rock, Granit

The 4.5” diamond disk worked very well I have a 8” thick concrete wall that is 200’ in length the top was very rough I used this to level out the high ridges that were over 1” high this disk will handle concrete with no problem the key is not pushing to hard but lifting the angle grinder up or down creating a slight angle introducing a small rounded groove it cuts deeper without pushing hardAfter finishing the wall after 5 hours of continuous grinding I still had about 50% of the disk remainingBuy with confidence you can’t go wrong I would definitely buy it againTrent

Muy bueno este producto , duradero y excelente muy bueno tal como lo necesitaba

Played the the game of home projects guided by AI based research. Learned this tool is far too aggressive for the light touch my use case needs, but gained the experience to recognize where this can be useful in other areas haha. Lesson learned, use your AI research and double-check with actual humans.

Worked fast on cement and brick. Would recommend.

Used to grind down super old cement and it did its job. Didn’t wear down all that much so I get to save for the next job.

The 26 year old concrete around my in-ground pool is very rough from the acid rain eating at the mortar and leaving the harder sand at the surface. It is painful if you fall on it (grand kids running around) and it cuts up the pads on my dogs feet (running and diving for toys). I used this grinding wheel on a small area and it works like a charm to level and smooth the rough surface. I have just started using this wheel today so I cannot attest to how long it will last. I will be planing to purchase more grinding wheels as I need them.

I put in a pad for an outdoor shower that was not draining as well as I hoped I bought this to grind some of the concrete to assist in draining. The grinding wheel works pretty well and removes material as one would expect. After using for about 45 minutes the wheel still had over 1/2 of the "teeth" remaining, however the dish on this tool is not very deep and the center stud of the grinder starting contacting the concrete. I continued to use the grinder (tilting it slightly) but the center stud continued to hit the concrete causing damage to the center stud. (Dewalt 20v angle grinder). I like this grinding wheel for the cost and I actually bought another one to finish the job, but I wish that it was deeper so the stud on the grinder didn't contact the surface before the wheel was worn out.

I made a pestel and morter for my wife