The Heli-Coil HE8187-14 is a 7/8-9 NC (National Coarse) straight flute plug tap designed for threading applications requiring precise, clean threads. The H3 tolerance class ensures consistent thread accuracy, making it well-suited for use in general machining and fastener repair operations.
Engineered by Stanley Engineered Fastening under the trusted Heli-Coil brand, this plug tap is ideal for through-holes and blind holes where a standard starting chamfer is needed. Its straight flute design makes it a reliable choice for a wide range of industrial, MRO, and manufacturing environments.