- M35 Cobalt HSS Step Drill Bits: Crafted from industrial-grade M35 high-speed steel and coated with titanium, these step drill bits offer exceptional sharpness and durability, ensuring long-lasting performance for all your drilling needs. - Innovative Design: The 120° split point tip enhances cutting speed while increasing wear resistance. The spiral-flute design allows for smoother cutting and efficient chip removal, making your drilling tasks easier and quicker. - Versatile Set: This step drill bit set includes 5 standard bits that effectively replace 50 individual drill bits, providing a wide range of drilling sizes in one convenient package. An automatic center punch is also included for added precision. The hexagonal shank ensures a secure fit with all power tools. - Wide Application: Perfect for drilling through various materials, including stainless steel, plastic, aluminum, and iron. For optimal performance, especially when drilling metal, it's recommended to use coolant or water, and to maintain a moderate speed. - Practical Use Scenarios: 1. Easily create precise holes in metal sheets for automotive or construction projects. 2. Use for home improvement tasks, such as installing hardware or fixtures in various materials. 3. Ideal for DIY enthusiasts looking to tackle a range of materials with one efficient tool set.