The Carmex Carbide Threading Insert for UNJ threads is a precision, TiAlN-coated carbide tool designed for reliable UNJ threading in metalworking. Built for machinists and job shops, it delivers consistent performance across common thread profiles with multiple length options to fit the task.

• Threading coverage: A versatile collection that spans all common thread profiles, enabling broad compatibility in a single insert family.
• Lengths: Available in 5 lengths from 12 mm up to 40 mm to match the depth and pitch of your project.
• Pitches supported: Depending on length, capable of handling pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI).
• Material: Solid carbide insert with a TiAlN coating for enhanced wear resistance and higher heat tolerance during threading.
• Edge configuration: Double-sided design with two cutting edges to extend tool life and reduce downtime (except for BSPT, NPT, NPTF, American Buttress, and API RD profiles).
• Internal/External capability: For many thread profiles, the same insert can machine both internal and external threads, increasing versatility (with exceptions for ISO, UN, NPSM, UNJ, and Acme).
• UNJ designation: Specifically suited for UNJ thread profiles, supporting accurate, consistent results on precision components.
• Coating benefits: TiAlN coating provides superior wear resistance and thermal stability, helping maintain accuracy at elevated cutting speeds.

This insert is ideal for shops that handle a range of threaded components—from prototype runs to production batches—where minimizing tool changes and achieving dependable thread quality matters. Its dual-edge design and broad pitch range make it a practical choice for mixed-threading tasks, while the UNJ focus ensures precise thread form and finish. The combination of carbide hardness and TiAlN coating translates to longer tool life and steadier performance across challenging materials.