The Carmex Carbide Threading Insert — Unified, TiAlN-coated — is a versatile threading solution designed for professional machinists who need reliable performance across common thread profiles. Built for turning centers and CNC lathes, it delivers precise, durable results with a single, adaptable insert family.

• Five length options: Five lengths (12 mm to 40 mm) to match workpiece geometry and reach, enabling pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI).
• Coating: TiAlN coating provides enhanced wear resistance and heat tolerance for longer tool life at typical threading speeds.
• Material: Carbide insert combines rigidity with longevity to handle recurring threading tasks in a busy shop.
• Double-sided edges: Most inserts feature two cutting edges for extended use before indexing (exceptions apply for BSPT/NPT/NPTF/American Buttress/API RD).
• Thread profiles covered: A unified threading insert collection that covers all common thread profiles, simplifying tool inventory.
• Internal & External threading: For many profiles, the same insert can machine both internal and external threads (excluding ISO/UN/NPSM/UNJ/Acme).
• Model & compatibility: 30I16UN Unified-threading insert designed to align with standard Unified forms and related profiles.

This single insert family empowers you to tackle a wide range of threading tasks with fewer tools, smoother setups, and consistent results. The combination of two cutting edges per insert and a durable TiAlN coating translates to longer edge life, less downtime, and dependable thread quality across pitches, making it well-suited for production runs, repairs, and prototyping alike.