Helicoil taps
1. HeliCoil taps are also referred to as HeliCoil Screw Thread Insert (STI) Taps and must be used for
heliCoil repairs.
2. HeliCoil STI Taps are supplied with heliCoil thread repair kits.
3. ChangLing HeliCoil STI Taps are manufactured in high speed steel. Every specifications are
produced rigdly. They produce holes for Tolerance Classes 4H5H and 5H for use in the general range
of aluminums, magnesiums, mild steels, free machining stainless steels, and other free machining materials.