ANITAGER Unibit Step Drill Bit Set (3-Piece) M35 Cobalt HSS TiAlN - Up to 1-1/4" (32mm Max) – Spiral Groove for Stainless Steel, Sheet Metal & Plastic, 1/4" Hex Shank, Aluminum Case — Open-Box, 13% Off

Premium M35 Cobalt Steel + TiAlN Coating – Built with 5% cobalt HSS for superior hardness, heat resistance, and durability, even when drilling stainless steel.

Dual Markings: Metric & SAE – Each flute is engraved with both mm and inch sizes, making the ANITAGER step drill set versatile for international and U.S. standards.

Spiral Dual-Flute Design – Advanced geometry reduces vibration, clears chips efficiently, and delivers smoother, faster, and cleaner holes.

Universal 1/4-Inch Hex Shank – Fits most drills and impact drivers, ensuring maximum torque transfer, anti-slip performance, and secure operation.

Complete 3-Piece Set + Rugged Aluminum Case – Includes sizes 4–12 mm (5/32"–1/2"), 4–20 mm (3/16"–3/4"), and 4–32 mm (3/16"–1-1/4") packaged in a durable ANITAGER-branded aluminum storage case.

Upgrade your drilling precision with the ANITAGER Step Drill Bit Set, 3-Piece – engineered for professionals and serious DIYers who demand durability and performance. Crafted from premium M35 cobalt high-speed steel with a TiAlN coating, these step drill bits are built to cut cleaner, last longer, and withstand high temperatures even when drilling through stainless steel, sheet metal, aluminum, and plastics. The spiral dual-flute design reduces vibration, removes chips efficiently, and delivers smoother holes with less effort. Each bit features a 1/4-inch hex shank that locks securely into drills and impact drivers, ensuring maximum torque transfer without slipping. This complete 3-piece set includes the most versatile sizes with dual markings: Bit 1: 4–12 mm (5/32"–1/2") Bit 2: 4–20 mm (3/16"–3/4") Bit 3: 4–32 mm (3/16"–1-1/4") Each step is engraved in both Metric (mm) and SAE (inch) scales – metric sizes on one flute, SAE on the opposite flute – for easy reading and versatile applications worldwide. Packaged in a rugged ANITAGER-branded aluminum case, this set is designed for safe storage, portability, and professional presentation. ✔️ Dual markings: Metric + SAE for universal use ✔️ Built from industrial-grade M35 cobalt steel ✔️ TiAlN-coated for heat and wear resistance ✔️ Backed by ANITAGER’s commitment to quality tools ANITAGER – Tools Built to Last.