sansheng 4 Pieces Concrete Grinding Wheel 4 inch,Diamond Cup Wheel Angle Grinder Wheels Grinding of Concrete, Granite

Works so well!!!! Much faster than other discs.

Cant beat this price and these things grind like beasts even when youre scraping down to the metal. Should have bought more

I started grinding masonry paint off the exterior of my house foundation with a $45 brand name grinding wheel. I ground the teeth off the wheel in about 24 square feet. These wheels cost under $5 each and last for about 15 square feet. Thats $2 per sq. ft. vs. 33 cents per sq. ft., so I save a lot by having to swap these grinding wheels a little more frequently. I have noticed these wheels last longer if you dont grind constantly. They seem to wear faster when you get them really hot.

Fast shipment. Item works well. Thank you

did just what I needed it to do. very good quality.

Resurfacing Patio molds. Wife didnt like how it was, this made it look awesome , lots of grinding even when kepts wet Dust was bad real bad so stop a trip to doctors wear a respirator mask!

Works well, almost no wear after 30 minutes use on mortar, concrete, stone,

The grinding wheel is well made, durable and produces a very nice finish. Im very pleased with the purchase.

I have a slab of concrete on my sidewalk where one side has sunk and raised the other side a significant amount (~ 3/4 to 1 in). This make quick work of the problem. I was able to flatten out the concrete to where there was no longer a tripping hazard. The grinding cup is still in great condition. Theres a couple of raised areas in my basement from old support beams I may tackle next.

I used these blades with a dust shroud to remove stubborn thinset. The listed dimension of back to blade is not 0.92. Its closer to to 3/4. My dust shroud is about 1 to bristles so I was having to push to get the blade to cut. I used 3 on an 80qft job because the blade rounded as I couldnt cut flat.