Grinding Wheel, Double Row, Diamond Cup, 4-1/2-Inch (DW4774)

Seems like it will last a good while before wearing.

Very effective for grinding down concrete. I used it to take layers of paint off outside wall. Used it for 5 days and still no wear. It needs practise to get it to work and leave a smooth finish. Its a workhorse but not a finishing tool

Purchased this item as the crew I hired to remove tile and thin set mortar on my sub floor did a poor/lousy job. Fired the crew and decided to do the job myself. When purchasing the diamond cup, I also purchased the Dewalt dust shroud which fit like a glove to my battery powered Dewalt angle grinder. Installed the diamond cup to the dust shroud and angle grinder. Low and behold, the grinder cup ate through the thin set like a hot knife in butter. The shroud which was connect to my Shop Vac removed 98% of the dust. Practically dustless. Great product (s). The only draw back on my experience was that my angle grinder was battery powered, which need recharging. If you have a non battery powered Dewalt angle grinder, you can cut through thin set and bits of tile all day.

DE LO MEJOR Y ME A DURADO , TRABAJE EN UN PISO DE 50 METROS CUADRADOS Y SE GASTO EL 30% MUY BIEN

Works great and this was the best price I found. I used it to grind down the entire top of foundations on 2 1600 sqft houses. It has plenty of life left in it so I ground down some six 1-inch-high concrete corners on a garage approach. The houses foundations took about an hour each and the concrete corners took about 15 minutes each. Dust level is very high so I would recommend at least an N95 mask.

I use this cup wheel on a very regular basis and it is awesome for cleaning and correcting masonry openings for new door and window installs. Cuts very aggressively yet leaves a nice finish. I have used my wheel hundreds of times on commercial projects and it still works great. I bought an identical replacement today because I am guessing mine will eventually die or perhaps it has slowly dulled a bit over the years without me noticing, but truth be told I can keep using my old one if I want to. Rebar does not kill it. Heat does not kill it. Hard pressure does not kill it. Caulk and paint do not clog it up. Double row is not a gimmick, it really removes a lot of material and it also helps keep you flat so you do not gouge. If your time is money, then this is the cup wheel for you. Works great on good cordless grinders too (Milwaukee for me)

Even though it is a little bit expensive. It does the job very well. I used it to grind a concrete fireplace. IAlso it is very durable. I used it on my DW402 Dewalt angle grinder. Perfect fit. Just be careful with dust. You must buy a dust collector but please don't go with the universal fit cheaper version. I did it and had to returned it. The original dust shroud is more expensive but it should have a perfect fit.