Professional Vacuum Brazed Diamond Core Dry Cut Drill Bits With Hexagonal Shank 42mm
Diamond core DRY cut drill bits are suitable for drilling ceramic tiles, glass, marble, granite, slate and porcelain tiles up to hardness grade 5 For use with any conventional power drills
For more sizes available on Classicpro eBay shop http://www.ebay.co.uk/itm/Professional-DRY-Diamond-Holesaw-Tile-6mm-42mm-Ceramic-Granite-Porcelain-UK-?