5/16" BSB 1" OD HSS Die
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HSS BSB (British Standard Brass) Dies are specialised threading tools designed for cutting, restoring, and repairing external BSB threads commonly used in brass fittings, lighting components, instrument hardware, fine mechanical assemblies, and traditional British engineering. Manufactured from high‑speed steel, these dies offer excellent hardness, wear resistance, and prolonged service life, allowing for accurate, clean, and consistent thread production on brass and other non‑ferrous metals. BSB threads feature a fine‑pitch, 55° Whitworth profile optimised for brass components where precision, smooth engagement, and minimal material stress are essential. These dies ensure smooth cutting action with reduced friction, making them ideal for delicate or decorative fittings, instrument restoration, lighting manufacture, and heritage equipment maintenance. Available in various outside diameters for compatibility with standard die stocks, HSS BSB Dies provide reliable threading performance for hobbyists, engineers, restoration specialists, and manufacturing workshops.
- High‑speed steel construction ensures superior edge retention, wear resistance, and durability
- Precision-ground cutting edges provide smooth, accurate, and clean BSB thread formation
- Designed specifically for British Standard Brass threads used in fittings, lighting, instruments, and fine mechanical assemblies
- Ideal for cutting new threads or refurbishing worn, damaged, or corroded brass fasteners
- Optimised for brass and other non‑ferrous metals, ensuring reduced friction and improved surface finish
- Smooth chip evacuation minimises heat buildup and cutting resistance
- Compatible with standard die stocks and holders for flexible workshop use
- Perfect for restoration work, instrument repair, decorative metalwork, and British‑spec manufacturing
- Ensures precise, reliable thread engagement for secure component fitment
- Professional‑grade tooling suitable for both hobbyist and industrial use
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