The Carmex Carbide Threading Insert, Unified, TiAlN Coated (model 21E18UN) is a versatile threading solution designed for machinists who regularly encounter a variety of thread profiles. Built with a tough carbide body, TiAlN coating, and a two-edge design, it offers reliable performance across common threading tasks with extended edge life.

• All common thread profiles: A versatile collection that covers the most frequently used thread types, simplifying tool selection and setup.
• Five length options: Available in five lengths, ranging from 12 mm to 40 mm, providing flexibility for different workpiece sizes and depths.
• Pitch range coverage: Depending on length, handles pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI) for broad compatibility.
• Double-sided cutting edges: Two cutting edges per insert increase life and reduce downtime, with exceptions for BSPT/NPT/NPTF/American Buttress/API RD profiles.
• Internal & external threading capability: For many thread profiles, the same insert can machine both internal and external threads, with exceptions for ISO/UN/NPSM/UNJ/Acme standards.
• TiAlN coating: TiAlN coating enhances wear resistance and heat tolerance, helping maintain precision on harder materials.

This threading insert is designed to streamline your shop workflow: use a single insert across multiple profiles to reduce tool changes, save on tooling inventory, and maintain consistent thread quality. The TiAlN coating protects the cutting edges from heat and wear, extending insert life even under demanding machining conditions. While it covers many common profiles with dual-edge efficiency, be aware of the profile-specific edge and applicability nuances to ensure optimal results on your particular workpieces.