The Carmex Carbide Threading Insert – Unified, TiAlN-coated, model 30I20UN – is a versatile threading insert designed for precise work across common profiles. Built for machinists and job shops, it delivers reliable performance for both internal and external threading tasks.

• Double-sided edges: Two cutting edges per insert maximize tool life and reduce downtime (except for BSPT/NPT/NPTF/American Buttress/API RD profiles).
• TiAlN coating: Enhanced wear resistance and heat tolerance for longer insert life in demanding threading operations.
• Five length options: Available in 12 mm, 16 mm, 20 mm, 32 mm and 40 mm to suit different pitches and holder setups.
• Wide thread-profile coverage: Designed to cover all common thread profiles within the Unified threading family for versatile use.
• Pitch range: Depending on length, suitable for pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI), enabling multiple standard threads with a single insert family.
• Internal and external threading compatibility: In many profiles, the same insert can machine both internal and external threads, reducing setup time and inventory (excluding ISO, UN, NPSM, UNJ, and Acme profiles).

This unified threading insert helps you achieve consistent thread geometry, improved surface finish, and lower total tooling costs. Its robust carbide body paired with TiAlN coating delivers dependable performance across varying materials and production runs, making it a practical choice for precision threading on fasteners, housings, and other threaded components.