Increase operator comfort with the vibration absorption provided by this Red Heat R983 coarse grit center mount fiberglass heavy duty flat flap disc for your right angle grinder. The high-density jumbo flaps improve disc life by up to 40 percent when compared to standard density flap disc performance, while helping it act like a finer grit disc. The disc's self-lubricating grain treatment reduces heat when you're blending, deburring and removing stock on hard-to-grind materials. Expect excellent efficiency on soft carbon steel, cast iron and ferrous metal, thanks to this disc's premium blend of ceramic alumina and zirconia alumina abrasive.