General description Streamline your drilling experience with our 5PCS Step Drill Bit Set, designed to cover up to 47 different hole sizes with one set. This feature saves you time and effort when changing drill bits. The set is constructed from high-speed steel with a titanium coating, enhancing durability and reducing wear. The split tip design is shaped to a refined 118-degree X-angle for increased sturdiness, contributing to the efficiency and longevity of the drill bits. Technical specifications Material: High-speed steel Coating: Titanium Number of bits: 5 Hole sizes: Up to 47 different sizes Tip angle: 118 degrees Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with hand drills and bench drills Suitable for drilling through materials such as 3mm steel, aluminum, insulating board, and PVC Includes a uniquely designed storage box with a size index for easy classification Usage Enjoy the smooth cutting performance of our dual-blade model, which aids