💎 4" Concrete Grinding Wheel: Heavy Duty Turbo Row Diamond Cup Grinding Disc for Granite, Marble, Masonry & Concrete – SUNJOYCO Review

I have an old concrete porch that was covered in layers of paint (but also had peeling and ugly bald spots). I used this on a 4-1/2 angle grinder to sand down old paint and smooth out worn areas. He even took care of the original marks the boards left after they were poured over 60 years ago. The result is a stair and landing that looks better than ever. (I'd have to repaint them every few years.) This wheel did the job and was 1/3 the price of a similar wheel at the big store. In addition…

It never fails. You ALWAYS get what you pay for in life, but for some reason I still try to go the cheap route sometimes. Well, this cheap "diamond" saw is complete junk. It won't fit in a 5/8 mandrel regardless of whether you use the ridiculously thin washer/sleeve they provide.2. After the jury tried it with my wide variety of tools and jigs, it didn't work well on concrete.3. You know, when something costs 1/3 the cost of port freight, beware the buyer. Finally, HF is not known for quality…

This grinding wheel makes fun of concrete. Keep this wheel moving as it will dig in if you stay too long. It produces a ton of dust (no wonder). Tip: let the speed of the tool do the work, don't push too hard if there's any force at all. I had to use two hands to control the instrument, otherwise the instrument would give me commands (again, no surprise). Considering you're grinding concrete, the disc has a surprisingly long lifespan. The only downside is that I couldn't use a regular tool to…