Tornado Turbo Blade for Hard MaterialBlue Tornado Diamond Blade for storm like cutting of granite and concrete. The Granite Cutting Disc features high quality diamonds and has cutting segments on the face of the blade. General purpose blade, for use on granite, cast stone, marble, concrete, has side diamond protection that cuts smoothly with friction free cutting. DRY WET Application : Granite, Marble, Hard Brick, Hard Paver Equipment : Angle Grinder, Circular Saw, High Speed Saw, Table