Review on 7" Diamond Grinding Wheels For Concrete Or Masonry, 24 Turbo Segments, 30/40 Grit, Medium Bond, 5/8"-11 Arbor by Lucas Hale

Here in Mexico, things are built, in part, "to the eye". if it looks good, it's done. I'm planning to add windows in a portal that was totally open to the wind, so added a low wall. Now that I want windows, I framed in where they will go. Only problem: one side drops about an inch more than the other. I tried cutting discs, grinding disk on my 7' grinder to no avail.Saw this item on Ebay and took a chance. Pre-threaded in 5/8", it is the size and thread for my 7 inch makita grinder. same thread. Grinding down a half to three quarters of an inch took me about ten minutes.