- Precision Drilling : The 5-35 mm step drill features 13 distinct steps for accurate drilling, with sizes laser engraved for easy identification, ensuring effortless operation and prolonged tool life. - Efficient Design : The double wing spiral groove design promotes rapid, stable, and smooth cutting. This drill includes a self-cleaning mechanism that enhances operational efficiency by automatically adjusting the hole size. - Time-Saving Features : Equipped with various pitch sizes, this drill enables users to drill or enlarge multiple hole sizes without the need for constant tool changes. The precisely laser-engraved tail guarantees durability for extended use. - High-Quality Material : Crafted from HSS steel and coated with titanium, this drill bit offers exceptional durability and high resistance. The titanium surface allows for effortless cutting through various materials, including steel, aluminum sheets, brass, plastic, and wood. Applications : - Perfect for metalworking, allowing for precise hole creation or modification in steel and aluminum components. - Ideal for woodworking projects, enabling clean and accurate drilling in various wood types. - Useful in DIY home renovation tasks where multiple hole sizes are required without switching tools frequently. This step drill blends precision, efficiency, and longevity, making it an essential tool for professionals and DIY enthusiasts alike.