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

Agressive material removal. Havent noticed much wear.

holds up when grinding brick. easy on, easy off.

If youve ever tried to get old thinset off of tile, this is the way, it will take porcelain down too.

I was skeptical about this grinding wheel because of the low price, but it works great! I ground a 1 lip off a 3ft wide concrete walkway in less than 15 minutes using a $15 Harbor Freight angle grinder. (Use those 20% off coupons :-) Wheel doesnt even look worn at all.

I needed something to smooth out the rough spaces I had by my decking and the wheels were perfect for the job. I was surprised on how long they lasted before i had to change the wheel out. For the price you cant go wrong.

The center ring was off when i received it

Works great, wore down faster than expected but for the money, it did the job nicely

I couldnt believe how fast and easy this removed the concrete! Be careful, because it DOES the job. VERY happy the way it worked.

it is okay and gt the job done it you need it for a small job and wont need it for one or two small jobs. Otherwise it wont last and it becomes much expensive than a quality product. it comes with a shim which was useless for me. There are variety of angle grinders out there which requires different shimming. It would be nice to provide a few shimming option along the wheel. Since only one shimming washer included in, it is on you to go find something fit in your tool and this wheel if you can which is frustrating. Reputable brands fits much better without guess work. At the end to me this grinding wheel is waste of money. I whish I spend a little more and get a better quality

Worked great. One disc lasted for about 1500 square feet on 50+ year old concrete. Cut nicely and smoothly. Use in conjunction with a dust shroud and vacuum.