Features: Engineered with a brazed diamonds coated tip and hexagonal shank, these 6mm dry drill bit deliver unmatched durability for precisions drilling in ceramic tiles, marble, granites, and vitrified surfaces without water cooling. The spirals cutting structure and anti slip tip ensures 20% improved drilling accuracy, while the 1/4" hexagonal shank ensures compatibility with 99% of power tools for vibrations resistant operations. Ideal for professional contractors, renovation specialists, and DIYer enthusiasts requiring performances for high precisions tasks in stonework and tile installations. Perfect for creating clean holes in bathroom tiles during remodels, installing kitchen countertops, or executing flooring projects requiring drilling in hard surfaces. Featuring protective coatings to minimize heat buildup, this 10 piece diamonds drill bit set tackles diverse materials effortlessly, eliminating tool changes between ceramic, granites, and vitrified tile applications. Specifications: Component: Alloy Shank:6.35 1/4'' Hexagonal Package Includes: 10pcs Drill Bit note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.