Carmex Carbide Threading Insert - Whitworth - TiAlN Coated - 40-8W G while the uncoated surface helps

while the uncoated surface helps chips evacuate quickly for cleaner cuts

extending tool life and providing consistent results across long runs and demanding materials

reducing the need to reposition workpieces

Flute configuration: 3–5 spiral flutes that provide efficient cutting and effective chip removal

so you can pick the balance grade that best suits your tolerance and workflow

Carmex Carbide Threading Insert - Whitworth - TiAlN Coated - 40-8W G while the uncoated surface helpsThe 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