3 Pieces 4 Inch Concrete Stone Ceramic Turbo Diamond Grinding Cup Wheel,12 Segs Heavy Duty Angle Grinder Wheels for Angle Grinder (Yellow)

Good blade for the price had to grind concrete worked very well would definitely buy again if needed

Bought two assuming the would eventually wear. These things are worthless, took so much pressure just to grind down the little amount of concrete. Returned both and bought one from home depot which was significantly more expensive, but what a night and day difference. You really are going to get what you pay for with this product. I would avoid it if I was you.

This is a great value for the price.

good

So I had a lot of mortar left on the floor under the Durock after ripping up the tile floor. I attached the wheel to my DeWalt grinder (I used the included washer) and started sweeping it side to side like I was wiping the floor. It ground off the mortar like butter. Within 2 minutes I had cleared about 12 square feet. In the pictures I am showing about a one square foot of mortar. The second pictures shows the thickness, about 1/4. In fact there was part of a screw remaining down in there. It whipped that area clean to the wood within 15 seconds, including the screw (sparks). It requires zero pressure, it just eats mortar and any nails or screws get ground down too. I will say that goggles and mask are a must. The amount of dust in the room made it impossible to see what I was doing every couple of minutes. By the time I was done, 15 minutes of actual grinding on a 10x10, my hair was coated in a thick powder and eyes burning. Basically I would stop every couple of minutes due to not being able to see through the dust. After about 30 minutes it settles and I went back to it, stopping periodically due to thick dust. The first wheel looked like it had been hardly used after doing this room. It makes the wood look almost brand new like a sandpaper machine. I dont know what it would do to a concrete floor if you needed to grind an area, but Im sure it would be worth trying. Well worth the money and you get two wheels!

I used this grinding disc to smooth out a concrete pad to display a tree carving. It made the job so much easier. I used it to wet sand and polish the pad before sealing it.

Announced as a set of two but only arrived one

NA

I watched some videos on line using these to grind different things. These will not do it. Maybe the more expensive ones would. But not these.

Worked great