Dry Diamond Drill Bits Set 3 Packs for Granite Porcelain Tile Ceramic Marble Size 1/4“ (6mm), 5/16” (8mm), 3/8” (10mm), with Quick Change 1/4” Hex Shank and Storage Cases
- Universal 1/4 inch Hex Shank -- fit a variety of quick-change chucks, drills or drivers.
- Add Versatility to Your Tools, including 3 sizes of Dry Diamond Core Drill Bits for drilling holes with Diameter of 1/4“ (6mm), 5/16” (8mm) and 3/8” (10mm).
- Vacuum Brazed Diamond Technology -- Great for drilling clean holes to hard materials especially tiles, porcelain ground, granite ceramic glass mirror marble stone masonry brick (not for wood).
- Dry Drilling Design -- Diamond Drill Bit integrated with wax lubricant inside which melts while dry drilling and cools the cutting surface.
- Water can be used as additional cooling to prolong the life of the bit..
- Details -- Diamond coating enhances the drilling speed.
- Including portable storage cases for convenient use and store..
- Worry Free -- If you encounter any problems in using the products, please feel free to contact us for satisfactory customer service..