SW04C P5™ General Purpose Heavy Duty Cup WheelCoarse. Turbo design for fast, smooth grinding. High diamond concentration for extra long life. Designed to be used on a variety of materials. Wet or dry grinding. Application: For Granite, Marble, Concrete, Brick, Block, Natural Stone, Refractory Material, Soft Stone, Sand Stone. Max RPM: 13,300. Prop 65 Warning: This product can expose you to chemicals, including cobalt, which are known to the State of California to cause cancer. For more