The high-performance screw tap with the newly-developed generation of shanks (a combination of polygon and straight shank (Ø M4–M12)) for versatile use with almost all machines and materials, such as conventional steels, stainless steels (e.g. V2A, V4A), titanium, heat-resistant and high-strength steels of up to 1200 N/mm² strength and casting materials. Also suitable for non-ferrous metals, such as aluminium, aluminium alloys, bronze and plastics.