Step Drill Bit Straight Shank is designed for stable and precise drilling with a straight shank that fits securely in drill chucks and presses. High-speed steel or coated construction ensures durability and long-lasting sharpness. The step design allows drilling multiple hole diameters sequentially without changing tools, suitable for metals, plastics, and wood. Spiral flutes promote efficient chip removal and prevent overheating during continuous operations. Ideal for workshops, prototyping labs, and industrial fabrication facilities.