The Carmex Carbide Threading Insert - Unified - TiAlN Coated - 21I24UN is a versatile, high‑precision carbide insert designed to cover a wide range of common threading profiles. Built for professionals who value efficiency and consistency, it delivers reliable performance across multiple thread standards with minimal tool changes.

• Threading range: Five lengths available (12 mm to 40 mm) and pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI) to suit a broad spectrum of threading tasks.
• Double‑sided design: Two cutting edges per insert (except for BSPT/NPT/NPTF/American Buttress/API RD variants), maximizing usage per insert.
• Internal & external capability: For many thread profiles, the same insert can machine both internal and external threads, reducing tool inventory (note: ISO/UN/NPSM/UNJ/Acme may require different tools).
• TiAlN coating: Enhanced hardness and heat resistance to sustain edge life at higher speeds and tougher materials.
• Carbide substrate: Rigid, durable core for precise starts, cleaner threads, and better overall dimensional stability.

Designed for machine shops and on‑demand threading work, this insert simplifies operations by covering a wide range of profiles with a single, reliable tool. The combination of a TiAlN coating, dual cutting edges, and compatible lengths means fewer tool changes, improved throughput, and consistent thread quality from first cut to finish. Ideal for technicians seeking a practical, no‑nonsense solution for unified threading needs.