The spiral drill from Alpen is a highly developed tool designed for precise drilling in alloyed and unalloyed steels. With a diameter of 1.1 mm and an overall length of 36 mm, this drill offers an optimal combination of flexibility and stability. The special HSS (High-Speed Steel) construction ensures high elasticity and toughness, minimizing the risk of breakage. The spiral drill is equipped with a point angle of 118° and a spiral angle of 25-30°, providing efficient cutting performance. Thanks to the precision roll-forged and ground guiding phases, the drill is particularly well-suited for use in hand-held drilling machines. The partial hardening of the flute length allows for up to 30% faster machining and a threefold longer service life compared to conventional drills. This spiral drill is therefore an excellent choice for professional applications where precision and durability are required.

• High-Speed Steel (HSS) for high elasticity and toughness
• Optimized drill geometry for reduced drilling times
• Suitable for alloyed and unalloyed steels
• Partial hardening of the flute length for longer service life
• Precision roll-forged and ground guiding phases for improved cutting performance.