Optimized Speed and Accuracy: With reduced cutting resistance and innovative 4-flute structure, the stepped eliminates burrs while layered cutting technology significantly improves drilling efficiency High Performance Drilling: Provides optimal stability and reduces slip problems, supporting performing drilling with optimized anti-slip and torque transmission capabilities Applications: Versatile drilling solution for multiple applications. Portability optimized by its compact design. Custom storage case prevents damage and loss, keeping accurate stepped diameters. Improved thermal management: The stepped design of the drill body ensures optimal heat dissipation, avoiding overheating and maintaining the sharpness of the drill bit for long-lasting performance during use Unrivalled strength: High-strength high-speed steel enhances the durability of the stepped minimizing frequent replacements for efficient and continuous operation in drilling hard materials