General description Professional diamond drill bits designed for drilling through a variety of hard materials including porcelain, glass, ceramic tiles, granite, marble, quartz, limestone, fiberglass, terrazzo, masonry, and stoneware. These high-quality bits are engineered for efficient and clean drilling, making them ideal for both professional and DIY projects. Technical specifications Set of 4 professional diamond drill bits Diameters: 6 mm, 8 mm, 10 mm, 12 mm Filled with cooling wax for dry drilling Installation Use a screwdriver to drill at a maximum angle of 30° Straighten the drill bit to complete the drilling process Usage Regularly wet the drill bit to extend its service life Using water or coolant is recommended for optimal performance
Availablity: 3-5 days
Free shipping & return for orders over $200