• High-quality porcelain drill bits, made of carbide with great toughness and resistance. • Cross-tip angle design for fast and precise drilling. • Spiral shank and U-shaped drainage groove for debris removal. • Hexagonal shank for quick and secure change. • Suitable for glass, ceramics, tiles, mirrors, wood, and more. • Made with tungsten carbide for durability and toughness. • Design that reduces slipping and deviation. • Versatile for ceramics, tiles, porcelain, and concrete. • Recommended to keep the drill bit vertical and use cold water for cooling.