STI Taps are available in HSS material as standard and in other materials such as HSS-E.
Coated taps with TiN or desired special coatings can also be provided.
STI taps are also referred to as Screw Thread Insert (STI) Taps and must be used for screw thread insert repairs. l STI Taps are supplied with Thread Repair Kits and may be used with the same tap handles as conventional taps.
STI Taps in various types and styles to produce holes for Tolerance Classes 4H5H and 5H for use in the general range of aluminums, magnesiums, mild steels. These taps are designed and manufactured of high speed steel to the most rigid specifications.