6-Piece Hex Shank Diamond Drill Bit Set for Granite, Marble, Porcelain, Glass, Tile, and More

About this item

• Professional Technology: Dry diamond drill bit set uses vacuum brazing technology, diamond grit can be adsorbed on the core rod with stronger wear resistance. The hex shank can be compatible with hand drills, bench drills and other machines.
• Wide Application: Dry core drill bit is suitable for cutting and drilling hard materials, including ceramic tile, quartz stone, marble granite ceramic, porcelain ground, glass mirror, marble, masonry brick etc.( Note not applicable to cement, toughened glass, metal, wood, plastic .)
• Design: The highly regular serrated and concentric shaft design allows for a quick cut of a complete smooth hole. 4pcs dry diamond drill bit for drilling holes of 1/4”(12mm), 5/16”(10mm), 3/8”(8mm), 1/2”(6mm) with 2pcs Carbide drill bits.
• Wax Cooling: Dry drill bit built in wax melting agent, wax melts when drilling, will adsorb heat dissipation to form cooling surface. Water can also added to extend the service life of the drill bit.
• Portable: Special storage case to store dry drill, light and portable. Diamond drill bits are printed with dimensions for easy to identification.