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

Great value - fast removal of thinset and also used it to grind the edge of some cement board.

This product was exactly as described and worked well

This grinding cup is well worth the money. Ive used on stone, brick and concrete and its never failed. Works as well as cups 3x the $$. This size is easy to control with one hand and great for working single pieces and small areas.

Great product I have a 10 x 10 foot slab to resurface. Actually wore the blades down to 1/16 inch. Ordered three more to finish up with. Use wet or dry, I started dry had so much dust in air it looked like a foggy morning. Wet the concrete down let stand for 15 minutes. No dust when wet.

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!

This product was exactly as described and worked well

The blade fit my older Makita 4” angle grinder. Worked fine though we had more cement to remove than anticipated. Ended up buying a larger angle grinder but these blades are a great value for the price.

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.

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.

Works great grinding concrete garage floor.