Serplex Step Drill Bits - HSS High Speed Steel 6PCS 432MM420 MM412MM6MM8MM3MM

6-PIECE TITANIUM STEP DRILL BIT SET: This professional-grade set offers exceptional versatility and precision for all your drilling needs. Designed for metal, stainless steel, plastic, and wood, each bit features a spiral groove for smoother cutting and clean holes. It comes with a sturdy aluminum storage case, making it ideal for workshops or on-the-go projects.. PREMIUM TITANIUM COATED PERFORMANCE: Each drill bit is crafted from high-speed steel (HSS) with a titanium coating to enhance durability and reduce wear. The coating minimizes friction and heat buildup, ensuring longer tool life and efficient drilling even through tough materials like stainless steel and hardened metals.. MULTI-SIZE VERSATILITY WITH SPIRAL GROOVE DESIGN: The step drill bits feature multiple hole sizes on a single bit, allowing seamless transitions between diameters without the need to change tools. The spiral groove design enhances chip removal, prevents clogging, and ensures smoother, faster drilling across a wide range of materials.. AUTOMATIC CENTER PUNCH INCLUDED: For increased drilling accuracy, this set includes an automatic center punch that creates precise starting points before drilling. It prevents bit walking, improves control, and helps deliver cleaner, more accurate holes, especially when working with metal or other hard materials.. DURABLE ALUMINUM STORAGE CASE: The included aluminum carrying case keeps the bits organized, protected, and easy to transport. Its compact and durable design ensures your tools stay in perfect condition, whether stored in your workshop or taken on job sites for professional or DIY use.