The Mexco Diamond Tile Drill Bit Range offers maximum performance and cost per cut when drilling the hardest of man-made and natural decorative materials. No water is required due to a special wax filled core that melts, lubricatesand cools when drilling. Note: For use on high speed corded drills Refer to applications for a comprehensive list of materials suitable for these tile drills. Key Features Hex Fitting guarantees stability in the chuck No Water Required Wax lubricated and cooled Diamond Tipped ...