$60.99 Drilax 2-1/2 inch Diamond Tipped Drill Bit Hole Saw for Ceramic, Porcelain Tiles, Glass, Fish 
1/2 Hole Saw Sets Inch Diamond Drill Bit For Tile Glass Marble Granite Ceramic 890343051261 | eBay
LANIAKEA 1-1/2-Inch Bi-Metal Hole Saw 38MM M42 Annular Hole Cutter HSS Variable Tooth Pitch 
