Strong and durable: Wear-resistant steel significantly extends the service life of this step drill, reduces maintenance costs, and ensures consistently high performance for all drilling projects. Protective concept: Includes a supplied storage box for easy transport, effectively preventing loss and damage of the drill bits. Optimized heat management: The stepped drill body enables intelligent heat dissipation, prevents heat buildup, and preserves the sharpness of the drill for sustained high performance. Optimized speed and precision: Low cutting resistance and an innovative four-layer structure ensure burr-free drilling. The multi-layer cutting technology increases drilling efficiency. Use scenarios: - Metalworking and fabrication tasks requiring stepped holes of varying diameters in sheet metal. - Enclosures and panels assembly or modification where different hole sizes are needed in one operation. - DIY projects requiring clean, fast drilling with minimal heat buildup.