Key features

• •✅Add Versatility to Your Tool: 6 Pieces of dry diamond core drill bits kit for drilling holes diameters of 1/4 inch(6mm), 5/16inch (8mm), 3/8inch (10mm), 1/2inch (12mm), 9/16inch (14mm) and 5/8inch (16mm) and 2pcs silver hexagonal handle diamond tile drill bits 6/8mm.
• •✅Vacuum Brazed Diamond Technology: Great for drilling clean holes in 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.
• •✅Unique Details: Diamond coating enhances the drilling speed; Round Shank is compatible with most machines such as Hand Drill, Angle Grinder, and Bench Drill; Side flutes help to remove debris and drill holes smoothly and fast; Depth mark useful for precise project.
• •✅Worry-Free: This diamond drill bits set comes with a portable storage case for convenient use and storage. And diamond coating enhances the drilling speed, suitable for dry drilling.