Non-Ferrous Metals, 11000 rpm Maximum, Brown.When an aggressive cut rate and smooth finish are a must, metal fabricators turn to a resin fiber disc RFD. Faced with the challenge of working on everything from pressure vessels to roller coasters, professionals need a solution they can count on. That’s why we’ve expanded our line up to deliver the options needed to optimize grinding time on a wide variety of applications. With premium grain mixes that aggressively remove metal and a superior design that locks the grain in, Weiler Tiger and Wolverine RFDs are designed to deliver serious grinding solutions. Whether you’re grinding tool steel, aluminum or anything in between, Weiler RFDs deliver the options you need to get the job done right and fast.