- Box Contents: This step drill bit set includes three versatile sizes (4-12 mm, 4-20 mm, and 4-32 mm) tailored to your drilling needs. Each drill size is precisely lasered for easy identification, ensuring accurate drilling every time. The package also comes with a convenient nylon bag for storage and transport. - Premium Material: Crafted from high-quality HSS steel and featuring a titanium coating, these hex shank step drills are designed to withstand wear and tear. They are corrosion-resistant, rust-proof, and built for long-lasting durability. - Spiral Design: The innovative spiral design enhances cutting efficiency, allowing for quicker and smoother operation while preventing slippage during use. As you drill, the step drill automatically removes burrs, streamlining the cleaning process and making it ideal for creating clean holes in various materials. - User-Friendly: Featuring a double-edged design, these step drill bits facilitate faster and more consistent drilling. Users will experience minimal resistance, enabling optimal speed and precision throughout their projects. Applications: 1. Perfect for woodworking projects, offering seamless drilling of pilot holes and clean finishes. 2. Ideal for metalworking tasks, allowing for precise resizing of holes without compromise on quality. 3. Great for DIY home improvements, such as installing fixtures and fittings with ease. Upgrade your drilling toolkit with these reliable and efficient step drill bits, engineered for both professionals and DIY enthusiasts alike.