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

Worked perfect for what I needed it to do!

Been using this on fieldstone for a month. Holds up great. Just as good as the more expensive versions. Great value.

Works great grinding concrete garage floor.

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!

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!

Wheel ground down faster than it could grind the concrete.

Works great grinding concrete garage floor.

This product was exactly as described and worked well

Been using this on fieldstone for a month. Holds up great. Just as good as the more expensive versions. Great value.

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.