- Set of 6 high-quality diamond drill bits for drilling tiles, ceramics, granite, and fine stoneware - Included sizes: 5mm, 6mm, 8mm, 10mm, 12mm, and 14mm, covering the most common needs in DIY and renovations - Made of durable carbide and coated with diamond, they offer high hardness, sharpness, and resistance to high temperatures - Incorporate lubricant wax for efficient cooling, allowing for both dry and wet drilling and extending service life - Compatible with hand drills, angle grinders, and bench drills thanks to their round shank - Depth marks and side grooves to remove debris and achieve clean, precise holes - Suitable for ceramic tiles, marble, microcrystalline stone, quartz, and porcelain stoneware - Not recommended for wood, cement, metal, tempered glass, or plastic