The HSS 15.5mm 135° 1/Card Reduced Shank Industrial Drill Bit is a high-quality drill bit designed for industrial applications, particularly when drilling through tough materials such as metal, steel, and alloys. 15.5mm diameter: Suitable for creating moderately large holes in various materials. 135-degree point: This angle helps improve cutting efficiency, reduces walking, and ensures accurate hole placement by providing a self-centering action, especially important when drilling in metal. Reduced Shank: The smaller shank size allows the bit to fit into smaller chuck sizes while still providing the strength and performance of a larger bit. This feature makes the drill bit versatile for use with various tools. HSS (High-Speed Steel): Known for its durability and heat resistance, HSS makes this bit ideal for high-speed drilling without excessive wear. Sold 1 per card: Convenient packaging for individual users or small-scale projects. This industrial drill bit is perfect for professionals needing precise, high-performance drilling in demanding environments.