Review on Megatron 4-Inch Diamond Cup Grinding Removing Disc Wheel for Concrete, Paint, Epoxy, Glue and Mastic with Advanced CDB Technology (Megatron 4-Inch) by Richard Miller

I have a set of concrete stairs that have cracked due to settlement and have been repeatedly painted with fairly tough facade paint. In order to paint them I had to remove most of the paint and remove past putty/repairs. I put this wheel on my often used Hitachi angle grinder and this item did the job. What is good. It was so aggressive and grabbed the surface of the concrete < I had to lightly touch it while having less of an impact on the paint which seemed to be melting but clung stubbornly to the surface. Good product that does what I bought it for. As of May 2021, I used this on the second of my two steps: It worked as expected. When I tried to get another one just like that, it was listed as 'unavailable' AND I couldn't get the price I paid in June 2020 (strange). There are other Mnfr available but I know this suits my needs. I'm disappointed but the Covid-19 quarantine may have disrupted distribution so I'll just let its useful life expire and see if it (or its equivalent) comes back to Amazon. That shows how happy I am with THIS product.