The metal spiral drill bit set from Alpen includes 25 precision-ground HSS spiral drill bits, delivered in a convenient plastic case. These drill bits are specifically designed for machining both alloyed and unalloyed steel, offering high concentricity and tight tolerances. The cross-ground design of the bits allows for quick and precise starting holes, eliminating the need for center punching. This reduces the required feed pressure and increases the tool's lifespan. The tool shank is designed with a round shape, ensuring compatibility with common drilling machines. With diameters ranging from 1 mm to 13 mm, this set covers a wide range of applications, making it a valuable addition to any workshop.

• Precision-ground bits with a special cross grind for quick results
• Self-centering special grind that eliminates the need for center punching
• High concentricity and tight tolerances for precise drilling
• Optimized drilling performance for alloyed and unalloyed steels
• Convenient plastic case for safe storage and easy transport.