LOT 9 Pcs SET Diamond Hole Saw Drill Bit Set 10mm - 50mm Granite Glass Tile - Tools 9 Piece Diamond Dust Hole SAW Drill BIT for Ceramic Tile Marble Rock Porcelain Diamond Drill Bits - Hole Saws 9 Popular Sizes: up to 50mm - Factory direct products bulk packages For porcelain, glass, marble, ceramic, rock and granite 10,14,16,18,20,26,32,45,50mm