General description Dry Diamond Drill Bits are designed for efficient drilling in various materials including ceramics, marble, masonry, concrete, and different types of tiles and stones. This set includes four bits with hexagonal shanks, ensuring compatibility with a wide range of drills. Technical specifications Sizes: 6mm (1/4 inch), 8mm (5/16 inch), 10mm (3/8 inch), 12mm (1/2 inch) Material: Metal Color: Black Usage These diamond bits utilize vacuum brazing technology to create fast, chip-free holes while maintaining a long service life. The self-cooling feature, achieved through a wax core, allows for dry drilling, although water can be added to extend the life of the bits when drilling harder stones. Other information