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

I used one of the 2 that I purchased on a small area but didn’t last as long as I thought it would but did smooth concrete nicely.

Works great. Remember to buy a dust shroud if you’re grinding indoors. This works so well you will fill a 1000sq ft with dust in 10 minutes if you don’t......I did. Ugh.

I got a two pack of these the first one one of the pads on the bottom flew off after two minutes use. Extremely dangerous for anyone in the area. The second one wore out after about five minutes use. I returned these and bought a single pack of a different brand and it has about 30 minutes use on it so far and still works great.

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!

Works great grinding concrete garage floor.

I needed to shave down some concrete for the entryway of my driveway and this did the trick wonderfully. I use a 4-inch angle grinder by Makita and had no issues. Item comes with a washer in order to adapt to the smaller arbor.

Product description states “2 pieces” and photo in written description shows TWO grinding disc’s. I only received one (1) disc. So, either the description is wrong or I was only shipped one of the two items. Mistakes can happen, it would be nice to receive both disc’s or be refunded a fair amount for one item. I have not used the grinding disc yet because I wanted to address the issue first.

I used one of the 2 that I purchased on a small area but didn’t last as long as I thought it would but did smooth concrete nicely.

Works great grinding concrete garage floor.

Great deal for a package of two. They are probably not the most durable compared to more costly ones, but it served my purpose for evening out a bridged footing for deck stairs. I recommend!