- Made from high-speed steel, these tap drill bits offer excellent hardness and wear resistance, ensuring durability and long-lasting performance. - The HSS 4341 drill bits are ideal for soft metals like aluminum, tin, and zinc alloys, while the HSS 6542 drill bits are specifically designed for working with thin iron sheets. - The innovative combination of drill bit and tap simplifies your workflow, allowing for faster processing and reduced effort. - Featuring a universal hexagonal shank, these bits are compatible with standard three-jaw chucks, enhancing versatility in various applications. - Each set contains 6 pieces with the following sizes: M30.5mm, M40.7mm, M50.8mm, M61mm, M81.25mm, and M101.5mm, providing a wide range of options for different tasks. Use Scenarios: - Perfect for DIY enthusiasts and professionals working on metal fabrication projects, enabling precise drilling and tapping in one step. - Ideal for automotive repairs or modifications, where quick and efficient processing of soft and thin metal components is essential. - Great for crafting and hobby projects that require accurate threading in various metal materials.