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

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

used for sanding my concrete pool, worked perfect good 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.

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

Good quality

I had been using flat discs but was working hard to create a flat surface on the bottom of concrete products my wife makes. With a 4 or 4 1/2 flat wheel there is just over an inch of wheel surface to use flat, then its up on edge trying to eyeball the surface. With these and a consistent circular motion of the grinding a large flat surface can be obtained.

This was perfect size for the concrete edges and rough spots on my house base I wanted to cover.

multi use tool

Cant beat it for this price

I ordered this two pack to remove thin set from a concrete subfloor after taking up some 20 year old tile from areas totaling around 500 sf. I used an inexpensive angle grinder and these discs to remove the thin set left over from the hammer drill/4 in chisel combo I used to take up the tile and remove the heaviest parts of thin set. Ive never used these types of discs before but these worked great, I wore out one of the discs out but only needed the second for the last 100 sf or so, it has a lot of use left in it. These worked well for me and were much cheaper than the big box alternatives that started at $40 each and went up from there. Pleased with this purchase.