ENGINEERED TO CUT HOLES IN GLASS, TILES, SLATE, MARBLE ,GRANITE with ease!!! a set ... following size holes 4mm, 5mm, 6mm, 8mm,10mm,12mm, 15mm, 20mm, 22mm, 25mm, 28mm, 30mm, 32mm, 35mm, 38mm, 40mm, 45mm ... ,50mm 55mm, 60mm. ENGINEERED TO CUT HOLES IN GLASS, TILES, SLATE, MARBLE ,GRANITE with ease!!! Best used with ... SPEED WITH A SPRAY BOTTLE FOR WATER. Diamond Tipped tile stone glass Hole Saw