- Enhanced Durability : Our step drill bit set is crafted from high-quality alloy steel and features a rust-resistant titanium coating. This combination ensures a long lifespan and excellent wear resistance, providing you with reliable performance for all your drilling needs. - Improved Efficiency : The unique serrated design of our step drill bits allows for fast and efficient drilling. It helps maintain precision while drilling horizontally, making it a versatile tool for various applications. - Comprehensive Set : This 6-piece set includes drill bits ranging from 4-12 mm, 4-20 mm, and 4-32 mm. Each bit is designed for compatibility with most electric drills, making it perfect for everyday drilling tasks. - Convenient Storage : Keep your toolbox organized with our space-saving step drill bit set. Its compact design allows for easy portability, ensuring you can drill whenever and wherever you need, without hassle. Practical Applications : 1. Perfect for DIY home improvement projects, such as installing shelves or mounting fixtures. 2. Ideal for plumbing and electrical work where precise hole sizes are critical. 3. Great for automotive repairs requiring various hole sizes in metal or plastic components.