Carbide Threading Tools · Made in USA
Thread Mills
Carbide Helical Thread Mills for Internal and External Threading
Carbide helical thread mills in UN, metric, and NPT/NPTF profiles for milling internal and external threads — quoted to your size and configuration.
Request Custom QuoteISO/IEC 17025Accredited
ISO 9001Certified Quality Management
ANSI/NCSL Z540-1Accredited Calibration Lab
Made in USASince 1989
Carbide helical thread mills produce accurate internal and external threads by milling, ideal for hard materials, large diameters, and setups where tapping isn't practical. WESTport supplies thread mills across the common thread profiles, all quoted to your specific size and configuration.
- Carbide Helical UN thread mills — inch thread forms.
- Carbide Helical Metric thread mills.
- Carbide Helical NPT/NPTF thread mills for tapered pipe threads.
All sizes and configurations are quoted on request.