Step Drill Bits Copper Use feature high-speed steel or coated construction for durability and long-lasting sharpness while drilling copper materials. The step geometry allows sequential drilling of multiple diameters without changing tools, while spiral flutes facilitate chip removal and prevent heat buildup. Tapered or straight shanks provide secure mounting in drill presses, CNC machines, or hand drills, ensuring stable operation and accurate holes. Ideal for fabrication shops, electrical assembly, and metalworking workshops working with copper parts.