The Carmex Carbide Threading Insert for Whitworth threads, TiAlN coated, model 40-8W is a precision tool designed for reliable, versatile threading in metalworking projects. Built for workshop use, it delivers consistent results across common Whitworth forms with durable coating and practical wear life.

• Length options: Five lengths spanning 12 mm to 40 mm to fit a range of hole depths and workpiece geometries.
• Material: Carbide insert for rigidity and stable cutting performance in demanding applications.
• Coating: TiAlN coating enhances wear resistance and enables higher cutting speeds and longer tool life.
• Thread form: Whitworth threading insert crafted to support Whitworth profiles with reliable geometry.
• Cutting edges: Double-sided design with two cutting edges (except for BSPT/NPT/NPTF/American Buttress/API RD variants) for extended usage before indexing.
• Internal/External capability: In many profiles, the same insert can machine both internal and external threads, reducing the need for multiple tools (with exceptions for ISO/UN/NPSM/UNJ/Acme).
• Pitches supported: Depending on length, can handle pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI).

This insert is designed to deliver precise Whitworth thread results with durable wear life, thanks to its carbide substrate and TiAlN coating. The double-edged design helps minimize tool changes during a run, while the flexible length options and broad pitch range offer practical versatility for a variety of threading tasks in metalworking shops.