Thread Mills - Whitworth (BSW, BSF)

Achieve clean external and internal Whitworth threads for general and legacy engineering applications.

Browse by Series

MTB – Thread Mills With Internal Coolant Bore For Blind Holes
MTB Thread Mills
Features:
✅ Coolant fluid washes the chips out of the hole
✅ Increased tool life
MTZ – Thread Mills With Internal Coolant Through The Flutes
MTZ Thread Mills
Features:
✅ Specially designed for threading on “through” holes
✅ Direct chip removal
✅ Optimal for machines without external coolant
Carmex Tool Wizard
Carmex Tool Wizard
Features:
✅ Perfect Tool Selection
✅ Smart & Simple to use
✅ Boost Accuracy & Efficiency
✅ Cycle times supplied
✅ All control types included

Whitworth (BSW, BSF) Thread Mills

Carmex Whitworth thread mills deliver perfect 55° thread profiles for both BSW and BSF standards, combining traditional thread forms with modern precision tooling. Designed for CNC and manual machining setups, these tools deliver clean, consistent threads that maintain the integrity of legacy components.

Built from premium carbide, Carmex Whitworth cutters handle a wide variety of materials including steel, cast iron, and non-ferrous alloys, while maintaining outstanding surface finish and repeatability. Whether you’re restoring parts, manufacturing fittings, or working on heavy-duty assemblies, Carmex ensures dependable threading performance and long tool life.

✅ True 55° Whitworth geometry for full and partial profiles

✅ Ideal for maintenance, repair, and legacy manufacturing

✅ Durable carbide design ensures accuracy over long production runs

Carmex Whitworth thread mills — where heritage precision meets modern CNC excellence.