Quickly remove stock from stainless steel, cast iron, titanium, and super alloys with the Metal R828 coarse grit center mount fiberglass heavy duty conical flap disc. When used with a right angle grinder, this all-purpose disc also makes short work of grit blending, deburring, and stock removal thanks to the sharp zirconia grain. Ideal for contouring and edge work, the disc features angled cotton and polyester flaps that ensure speed and efficiency with greater surface contact. The lightweight resin and fiberglass backing plates diminish vibration for enhanced comfort during use.