ITM Tools Hex-16 5/16 White Diamond Tile Bit (Lot of 9). These are surplus units from bulk packaging and have never been used. Packaging may show signs of wear due to storage only. 9x 5/16 White Diamond Drill Bits (Hex-16).Does not include any additional cables, parts or accessories other than those explicitly mentioned in the listing. Application: Porcelain, Ceramic, Granite, Marble. Suitable for Use With: 1/2 Drill, Impact Drivers. We take pride in packing items carefully to ensure safe arrival. Please check out our other items!