Helicoil threading taps are available in HSS material as standard product and as specials in HSSE or HSS with high cobalt contents. In addition the taps can also be provided with special wear resistant coatings. Standard helicoil taps are designed and manufactured of high speed steel to the most rigid specifications in various types and styles to produce holes for tolerance class 4H5H and 5H6H in metric series and of class 2B/3B in UNC/UNF series for use in the general range of aluminums, magnesium, mild steels and alloy steels. Types of helicoil taps: Helicoil hand taps; roughing, finishing ( plug ) & bottoming style Helicoil spiral pointed machine taps Helicoil spiral fluted machine taps Helicoil roll thread taps - cold rolling thread forming machine taps
