4Pcs/set Hex Shank Dry Diamond Drill Bits Marble Granite Hole Bit

⭐Product Highlights• Diamond brazed with cooling wax core for dry drilling no water needed• Hex shank 6.35mm fits most standard drills securely• Cuts porcelain ceramic granite and marble⭐Product Specifications• Quantity: 4 pieces (6mm 8mm 10mm 12mm)• Material: Diamond brazed with wax core• Shank: Hexagonal 6.35mm working length 40mm⭐Product Function• Drills clean holes in hard surfaces without water• Diamond coating for wear resistance and long life• Light grinding for edge smoothing after drilling⭐Scene Display• Home bathroom and kitchen tile drilling• Professional construction stone and tile work• DIY crafts on glass-filled tiles⭐Product Details• Self-cooling prevents overheating• Apply steady pressure while drilling dry• Wear safety goggles and gloves