1. 3-in-1 Multi-Functional Kit: The spiral tap drill bit set combines three essential functions—punching, tapping, and deburring—into a single tool, reducing processing time by 50% compared to traditional methods. Ideal for use with soft metals such as aluminum and zinc alloys. 2. Premium High-Speed Steel: Crafted from high-speed steel with a robust HRC62 hardness and an oxidation-resistant blue coating, this hex shank drill and tap kit is three times stronger than standard bits, ensuring extended durability when working with thin wood and plastics (less than 5mm). 3. Precision Engineering: Each drill bit in sizes M3-M10 is designed to maintain a precise thread pitch (0.5-1.5mm) and features a cutting portion length of 1.26-1.42 inches. This guarantees clean, accurate holes without the need for tool changes, making it perfect for both DIY enthusiasts and professional mechanics. 4. User-Centric Design: The total length of 2.13-2.28 inches, combined with an ergonomic hex shank, minimizes slippage during operation, enhancing user control. Note: This tool is not suitable for hardened steel to prevent the risk of breakage. Use Scenarios: - Easily create threaded holes in aluminum parts for custom projects in your workshop. - Streamline your tapping process for plastic components in manufacturing applications. - Simplify home repairs by quickly deburring edges after drilling into soft materials, ensuring a smooth finish.