The Carmex Carbide Threading Insert in Whitworth form is a TiAlN-coated carbide tool designed for precise, versatile threading on metal. Ideal for workshop machinists and job shops working with Whitworth threads, it delivers reliable performance across common thread profiles.

• Thread profiles covered: A versatile collection of threading inserts that covers all common thread profiles, with a focus on Whitworth forms.
• Length options: Five lengths available from 12 mm to 40 mm to match your machining setup and pitch requirements.
• Pitches supported: Capable of handling pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI) depending on the chosen length.
• Double-sided design: Inserts are double-sided, offering two cutting edges for extended life (except for BSPT/NPT/NPTF/American Buttress/API RD).
• Internal/External capability: For many thread profiles, the same insert can machine both internal and external threads (with exceptions for ISO/UN/NPSM/UNJ/Acme).
• Coating and material: TiAlN-coated carbide insert, delivering improved wear resistance and heat tolerance during demanding threading jobs.
• Code: 14-16W sizing to fit a range of threading tools and holders.

This single, TiAlN-coated insert handles a wide range of Whitworth and common thread profiles, reducing tool changes and inventory. The dual cutting edges extend usable life between regrinds, while the coating helps resist heat and wear during deeper cuts or higher-speed threading. Perfect for fabricating fasteners, repairing worn threads, or finishing components on lathes and CNC machines, it offers consistent performance and reliable results across typical workshop tasks.