<h3>Diamond Core Drill Bit 28mm</h3><br/><p>The diamond core drill bit is designed for non-impact "wet" drilling in porcelain stoneware, ceramic tiles, marble, porcelain, and hard tiles.</p><br/><p><span style="text-decoration: underline;"><strong>Packaged in sets of 2.</strong></span></p><br/><h4>Product Features:</h4><br/><ul><br/><li>Drill bit diameter: 28mm</li><br/><li>Diamond coating height: 6mm</li><br/><li>Shank compatible with drills equipped with a chuck head</li><br/></ul>