RemGrit, 2 inch 1 Piece Hole Saw, Cuts Ceramic Tile, Marble, Slate, Fiberglass, Laminates and Composites, Patented Design, No Separate Mandrel Or Pilot Drill Needed, Tungsten Carbide Grit Cutting Edge, Continuous Edge Design, Produces Exceptionally Smooth Cuts, No Teeth To Dull Or Chip, 1 inch Depth Of Cut, Perfect For Do-It-Yourself Ceramic Tile Projects.