8-Piece Diamond Core Drill Bit Set for Tile and Marble

About this item

• 【Top Quality 】Made of thickened premium diamond, vacuum brazed diamond technology provides very high efficiency,and the height of emery of diamond drill bit is up to 13mm, cuts faster and lasts longer；
• 【8PCS Diamond Core Drill Bits set】Including 6 sizes: 2x 1/4''(6mm), 2x 5/16''(8mm), 1x 3/8''(10mm), 1x 1/2''(12mm), 1x 9/16''(14mm) and 1x 3/8'' Triangular Shank Adapter. also comes with an exquisite storage box, easy to carry .
• 【Universal 5/8-11 Thread connector & Adapter】This hole saw drill bit set adopts universal 5/8-11 thread, suits for angle grinder, also equipped with a universal triangular adapter, suitable for all electric drills. The design of U-shaped chip grooves provides longer working life, fast and smooth drilling.
• 【Widely Application】diamond drill set with portable case fordrilling Glass, Tiles and Hard Ceramic Tiles, Porcelain, Granite Marble, Quartz, Limestone, Fiberglass, Terrazzo, Porcelain Stoneware, Masonry, Sandstone(not for wood);
• 【Dry and Wet Drilling Designs】Drill bits below 12mm are filled with cooling wax and are suitable for dry drilling. The cooling wax will melt when dry drilling, and water or other drilling coolants can be used as additional coolant to extend the service life of the drill bit.