Marbles By FIVCLOK

• 10pcs 1/4" Dry Drilling Design:With sharply ground & extremely hard diamonds, the diamond drill ensures a professionally clean and fast drilling.Filled with cooling wax, it is used for cooling and lubricating in the drill bit, so you can drill holes without adding water, suitable for dry drilling.
• Stable and Durable: diamond drill bits for dry drilling, stable drilling. In addition, it has a long service life thanks to high quality and temperature-resistant diamonds. Vacuum soldering is the most effective and precise way of manufacturing diamond tools. It enables us to improve the removal rate and increase the service life.
• Apply to:Tile drill diamond perfect for tiles, glass and hard ceramic tiles, porcelain, granite marble, quartz, limestone, fiberglass, terrazzo, porcelain stoneware, masonry, sandstone etc.Note: not for wood.
• Wide compatibility:Diamond coating enhances the drilling speed; Round Shank compatible with most machines such as Hand Drill, Angle Grinder, Bench Drill.
• Customer Support:The porcelain drill bits diameters from 3/16'', 1/4'', 5/16'', 3/8'', 1/2'', 9/16', 5/8'', 7 sizes to choose from, will meet most of your different needs. We stand behind our products, if you are not satisfied, please feel free to contact us. We will offer you the best way to solve any problem.