- Product Overview: HSS Cobalt Step Drill Bit Set (1.4-12 mm, 4-20 mm, 4-32 mm) designed for precision drilling in metal materials. - Type: Step Drill Bit - Material: High-Speed Steel (HSS) with cobalt for enhanced durability and heat resistance. - Key Benefits: - Versatile Applications: Ideal for creating clean, conical holes in various metals, including steel, aluminum, and copper. - Efficient Performance: Designed with a spiral shape for faster chip removal, reducing drilling time and improving efficiency. - Multiple Sizes: Three different sizes (1.4-12 mm, 4-20 mm, 4-32 mm) allow for flexibility in projects, catering to different hole diameter needs. - Features: - Compatibility: Works with standard power drills for ease of use across different tasks. - Durable Construction: Made from nitrogen-treated high-speed steel, ensuring long-lasting sharpness and performance. - Use Scenarios: - Metalworking: Perfect for machinists and metalworkers needing precise hole sizes for fasteners or fittings. - DIY Projects: Great for home improvement tasks, such as installing hardware or creating custom metal pieces. - Automotive Repairs: Useful for mechanics requiring specific hole sizes in various metal components. This drill bit set is an essential addition to your toolkit, delivering reliability and precision for all your metal drilling needs.