2-pc. Mach-blue Step Drill Bit, 1/8 - 1/2 In. & 3/16 - 7/8 In.

Introducing the Mach‑Blue Step Drill Bit Set, a versatile 2‑piece collection designed for smooth, progressive drilling in metal, plastic, and wood. Each bit features a rugged hex shank for secure tool‑holder engagement and a vivid Mach‑Blue coating that resists wear and corrosion while delivering a clean, precise hole every time.

Why choose this set? The stepped geometry lets you start with a small pilot hole and finish at a larger diameter without swapping tools, saving you time on the job site. The high‑performance coating extends tool life, reducing replacement costs and keeping your workpieces free of burrs and splatter.

• Mach‑Blue surface treatment: Provides superior hardness and corrosion resistance for long‑lasting performance.
• Hex shank design: Ensures a tight grip in chucks and quick‑change tooling systems.
• Dual‑size range: Covers 1/8"‑1/2" and 3/16"‑7/8" diameters, perfect for a wide array of hole‑size requirements.
• Step‑wise drilling: Allows single‑pass enlargement, minimizing drill‑bit changes and improving efficiency.
• Multi‑material compatibility: Engineered to cut through steel, aluminum, stainless steel, PVC, and hardwood with consistent accuracy.

Experience unmatched convenience and durability. Whether you’re a professional machinist or a DIY enthusiast, this step drill bit set delivers the precision and reliability you need for clean, round holes. The striking Mach‑Blue finish not only looks professional but also signals a tool built to withstand demanding applications. Upgrade your drill arsenal today and enjoy faster, cleaner results on every project.