The Carmex Carbide Threading Insert is a unified-thread, TiAlN-coated solution built for machinists and production shops that demand precise, dependable threading across common profiles.

• Coating: TiAlN-coated carbide inserts for enhanced hardness and heat resistance, helping maintain cutting performance in demanding materials.
• Thread profiles coverage: A versatile collection that covers all common thread forms, designed to minimize tool changes and maximize setup flexibility.
• Lengths: Five available lengths ranging from 12 mm to 40 mm to suit different workpiece sizes and access needs.
• Pitch range: Capable of threading pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI), enabling a wide array of standard screws and fasteners.
• Double-sided edges: Each insert provides two cutting edges (double-sided) to extend tool life, with exceptions for BSPT/NPT/NPTF/American Buttress/API RD profiles.
• Internal/External threading capability: For many thread profiles, the same insert can machine both internal and external threads, reducing tooling complexity—note: ISO/UN/NPSM/UNJ/Acme profiles have specific exclusions.
• Designation: Unified 21E24UN threading insert for standardized performance across common applications.

Designed for reliability in job shops and production environments, this insert reduces tool changes and inventory complexity while delivering consistent thread quality. The TiAlN coating helps sustain performance in higher-temperature cuts, and the double-edged design means fewer insert replacements during a run. Whether you’re tackling internal bores or external threads, this unified solution covers a broad range of profiles with solid, repeatable results.