Precision Diamond Tools 5 Diamond Dust Hole Saw for Tile / Glass/ Marble / Granite / Ceramic / Porcelain / Stone Holesaw 3/4", 1", 1-3/16", 1-3/8", 1-5/8" Electroplated Diamond Drill Bits PREMIUM QUALITY LONG LASTING Diamond Hole Saw Drill Bit Tool Set in Elegant PU Zipper Storage Case, High Density Poly Insert Included - You can use it as a guide to keep the hole saw in position. SAVE OVER 80 Percent on MOST POPULAR 5 Sizes: 3/4", 1", 1-3/16", 1-3/8", 1-5/8" - Having these sizes available will help you cover almost all of your applications. SPECIAL FEATURE : These hole saws are 30 percent longer (deeper) than most competitors. You can drill through thicker materials with our tools. 1-3/8 inch counter-tops are no problem. Shank size is 3/8 inch for common drills. EXCELLENT RESULTS in Granite, Ceramic and Porcelain Tiles, Glass, Marble, Slate, and many types of Stones. WE ARE HERE TO HELP and REFUND YOUR MONEY.