Baer Circular Die in High-Speed Steel (HSS) is a general‑use tool designed to cut precise external threads on cylindrical workpieces. Ideal for machinists, repair techs, and hobbyists, it delivers dependable 3/8 in diameter, 24 TPI left‑hand UNF threads with long‑lasting performance.

• Material: High‑Speed Steel (HSS) construction for durability and wear resistance
• Thread Type: UNF (Unified Fine) with left‑hand threading
• Size: 3/8 in diameter x 24 TPI (left‑hand)
• Cutting Edges: Precisely ground edges for clean, accurate thread forms
• Compatibility: Designed for use with a die stock or die holder to ensure controlled rotation
• Durability: Built for longevity in everyday workshop use

This die enables consistent, high‑precision threads that mate smoothly with corresponding nuts and fittings, reducing installation effort and rework. The left‑hand UNF thread is ideal for applications requiring reverse threading or where standard right‑hand threads might loosen under operation. With Baer’s carefully ground cutting edges and robust HSS material, you gain a reliable tool capable of withstanding repeated use on steel, alloys, and other metals while maintaining accurate thread engagement across multiple jobs—whether you’re fabricating a new component, repairing a shaft, or completing a prototype.