Carmex Carbide Threading Insert - NPSM - TiAlN Coated - 21E11.5NPSM is a versatile threading solution designed for machinists and shops that demand consistent, reliable performance across common thread profiles. Built on a carbide body and finished with a durable TiAlN coating, this insert supports precise threads with extended life, even in demanding materials.

• Coating: TiAlN coating enhances wear resistance and heat tolerance, helping maintain edge sharpness and prolong insert life.
• Material: Carbide body delivers rigidity and wear resistance for clean, accurate thread milling and turning.
• Double-sided design: Two cutting edges per insert (except for BSPT/NPT/NPTF/American Buttress/API RD profiles), enabling edge rotation to extend service life and reduce downtime.
• Thread profile coverage: Designed to tackle all common thread profiles with wide compatibility, while noting that ISO/UN/NPSM/UNJ/Acme profiles may limit internal/external reuse on a single edge.
• Length options: Five lengths available (from 12 mm to 40 mm) to suit different tooling needs and pitch requirements.
• Pitch range: Depending on length, supports pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI) for flexibility across applications.

This threading insert family is ideal for workshops and production environments that require a compact, reliable solution for both internal and external threading tasks. The combination of a TiAlN-coated carbide body, dual cutting edges, and a broad range of lengths and pitches enables consistent thread quality, reduced tool changes, and greater versatility in everyday machining scenarios.