The Tamo titanium-coated HSS Step Drill Bit Set offers top-notch performance. Its unique stepped tip eliminates the need for a pilot hole, ensuring flawless, round holes. The tilting option enhances control and speeds up the drilling process. Suitable for steel, aluminum, plastic, non-ferrous metals, hardwood, and softwood. Its long lifespan and reliable performance make it an ideal choice for professional use. Be the first to try a step drill bit with STEP technology and effortlessly experience high-quality drilling results in various materials.