Ceramic Grit Flap Discs are designed for rapid and aggressive stock removal and to smooth out welds, beads and burrs as well as rounding sharp edges. Compared to a grinding disc flap discs cut cooler, grind faster and are more user friendly due to the reduced vibration. Used for grinding stainless steel, chrome, metal, titanium and other hard materials. Coarse 40grit suitable for Heavy stock removal. Max 12250rpm