The Carmex Carbide Threading Insert – Unified – TiAlN Coated (14E28UN) is a versatile carbide solution designed to cover a broad range of common thread profiles with a single, reliable insert. Built for machinists and job shops that value consistent thread quality and tool life, it delivers precise results across multiple applications.

• Unified threading coverage: A single insert family that supports all common thread profiles, reducing the need for multiple tools.
• TiAlN coated carbide: Advanced coating enhances wear resistance and heat tolerance for longer edge life in tough materials.
• Five length options (12–40 mm): Choose from five lengths to match your threading needs and pitch requirements.
• Double-sided cutting edges: Each insert typically provides two cutting edges for extended use (except for BSPT/NPT/NPTF/American Buttress/API RD).
• Internal and external threading capability: For many profiles, the same insert can machine both internal and external threads (exceptions apply for ISO/UN/NPSM/UNJ/Acme).
• Wide pitch range: Depending on length, handles pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI).

Designed to simplify tooling and maximize productivity, this insert helps you achieve accurate thread forms with fewer changes and less inventory. The TiAlN coating supports longer tool life under demanding cutting conditions, while the double-edged design and broad pitch compatibility provide flexibility across a variety of threading tasks. Ideal for precision threading in CNC lathes and milling setups, it’s a practical, reliable choice for shops focusing on consistency, efficiency, and quality finishes.