High-Quality Material: Crafted from premium M35 cobalt alloy, providing exceptional wear resistance and high-temperature stability for prolonged, stable use. Multifunctional Design: The step drill is suitable for various materials such as stainless steel, mold steel, carbon steel, copper, and aluminum alloys, meeting diverse work requirements, making it an ideal choice for craftsmen and DIY enthusiasts. Precision Cutting: Featuring an industrial-grade Tiain coating, delivering outstanding cutting performance to ensure an efficient and precise drilling experience, suitable for metal engineering and electrical work. Multiple Size Options: The step drill set includes 5 sizes (4-12mm), catering to different drilling needs without the hassle of frequent bit changes. Convenient Portability: Comes with a neatly organized carrying bag for easy transport and storage, allowing you to enjoy an efficient drilling experience anytime, anywhere. Explore an advanced drilling experience! Our M35 Cobalt Alloy Step Drill Bit is the ideal choice for tackling various tasks. Crafted from high-quality M35 cobalt alloy, it boasts exceptional wear resistance and high-temperature stability, ensuring seamless performance across a variety of materials. The multifunctional design makes it the perfect choice for craftsmen and DIY enthusiasts, suitable for stainless steel, mold steel, carbon steel, as well as copper and aluminum alloys. The unique structure of the step drill allows you to drill through various specifications without the need for frequent bit changes. Precise and efficient, our step drill features an industrial-grade Tiain coating, providing outstanding cutting performance. Whether in metal engineering, DIY projects, or electrical work, it meets your demands for high-quality tools. But that's not all – our M35 step drill also comes with a neatly organized carrying bag, making it convenient for transportation and storage. Upgrade your toolbox now for a more efficient and precise drilling experience!