Enhance your drilling tasks with this premium Hex Shank Step Drill Bit Set, crafted from high-speed steel with a durable titanium coating for exceptional hardness and long-lasting performance. Designed with a unique groove and three-sided (TRI-FLAT) shank, these step drill bits ensure a secure grip in your drill chuck, preventing slipping or falling during operation for enhanced safety and precision. Key Features: · **High-Quality Ti-Coated High-Speed Steel:** Provides superior hardness and wear resistance, extending the service life of each drill bit for consistent, reliable use. · **Groove & TRI-FLAT Shank Design:** Innovative groove layout combined with a three-sided shank on larger bits and hex shank on smaller ones ensures a firm, slip-free grip during drilling. · **Cobalt Coating for Cooler, Smoother Cutting:** Reduces friction and heat buildup, enabling smoother, faster cuts while automatically deburring holes as you drill to save time and effort. · **Versatile Application:** Ideal for drilling clean holes in multiple materials including steel, brass, wood, and plastic, making it perfect for a wide range of DIY, professional, and industrial projects. · **Multi-Step Drill Sizes Included:** Replaces up to 50 individual drill bits, covering a wide range of hole diameters with precise increments for maximum flexibility. · **Protective Aluminum Case:** Comes in a sturdy, padded aluminum storage case (15cm x 10.5cm x 4.2cm), keeping your drill bits organized and secure for easy transport and storage. Sizes Included: · #1: 3/16" to 1/2" (6 Steps) · #2: 1/8" to 1/2" (13 Steps) · #3: 1/4" to 3/4" (9 Steps) · #4: 1/4" to 1-3/8" (10 Steps) · #5: 3/16" to 7/8" (12 Steps) Package Includes: · 1 x 1/4"-1-3/8" Step Drill Bit · 1 x 3/16"-7/8" Step Drill Bit · 1 x 1/4"-3/4" Step Drill Bit · 1 x 1/8"-1/2" Step Drill Bit · 1 x 3/16"-1/2" Step Drill Bit · 1 x Protective Aluminum Case This versatile Hex Shank Step Drill Bit Set is engineered to deliver fast, precise drilling with enhanced control and durability. Perfect for professionals and hobbyists alike, it streamlines your workflow by replacing multiple individual bits and ensuring cleaner holes across various materials. Upgrade your tool collection with this reliable, easy-to-use drill bit set for efficient and smooth cutting every time.