The Carmex Carbide Threading Insert in NPSF form is a versatile, TiAlN-coated solution built for professional machinists who need reliable, multi-profile threading on lathes and CNC machines. Designed to cover the most common thread forms, including NPSF, it delivers consistent results across a wide range of applications.

• Thread profiles covered: A versatile collection that spans the majority of standard thread forms you’ll encounter in daily machining.
• Five length options: 12 mm, 16 mm, 20 mm, 30 mm, and 40 mm lengths to fit different tooling setups and depth-of-cut needs.
• TiAlN coating: Hard, high-temperature resistant coating that enhances wear resistance and helps maintain edge sharpness over longer runs.
• Double-edged design: Two cutting edges per insert (except for BSPT/NPT/NPTF/American Buttress/API RD profiles) for extended usable life from each piece.
• Internal/external threading versatility: In many profiles, the same insert can machine both internal and external threads, reducing tool changes and inventory (note: some forms such as ISO/UN/NPSM/UNJ/Acme may differ).
• Wide pitch range: Supports pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI), enabling both fine and coarse thread production.

With its TiAlN-coated carbide core and a flexible five-length lineup, this insert delivers precise, reliable threads with reduced downtime and fewer inserts to stock. The dual-edge geometry provides more usable life per piece, and the broad pitch range supports a wide array of standard thread forms—including NPSF threads—making it a practical choice for general machining, pipe fittings, and precision fasteners. This is a dependable, long-term tooling solution for workshops that value consistent performance and efficient production cycles.