Solid Circular Threading Die Whitworth W 3/4" (BSW) HSS, WF

This professional solid circular threading die by WF is a premium-grade industrial tool engineered specifically for cutting and repairing British Standard Whitworth (BSW / W) external inch threads. Crafted from high-performance High-Speed Steel (HSS), this die delivers outstanding structural hardness, superb torsional resistance, and exceptional edge retention, preventing thread tearing and guaranteeing flawless thread calibration even under demanding workshop conditions.

Featuring a nominal thread size of W 3/4" with 10 threads per inch (TPI), this precision die conforms strictly to the classic Whitworth thread form with a $55^\circ$ flank angle. It is highly optimized for the maintenance and restoration of classic British automobiles and motorcycles, legacy agricultural machinery, vintage industrial equipment, and specialized piping systems. WF's rigorous manufacturing standards guarantee absolute geometric accuracy, ensuring clean, chip-free, and effortless execution on standard carbon steels, ferrous materials, and non-ferrous metals.

Features:

• Tool Type: Solid Circular Threading Die

• Thread Specification: British Standard Whitworth (BSW / Marked as W)

• Thread Size: W 3/4" (Nominal Diameter: ~19.05 mm | Pitch: 10 TPI)

• Thread Angle: $55^\circ$

• Material: High-Grade HSS (High-Speed Steel) for high wear resistance and extended service life

• Application: Ideal for cutting new threads or restoring damaged fasteners, shafts, and bolts in vintage mechanical assemblies

• Universal Fit: Compatible with standard hand die stocks or machine tool attachments

• Manufacturer: WF