The Baer Circular Die HSS for UNF left-hand threads is a precision external-threading tool designed for professionals and serious DIY builders who work with cylindrical stock. Built for general use, it delivers clean, accurate left-hand threads on 1 in diameter parts with a 12 TPI UNF pitch.

• Material: High-speed steel (HSS) cutting body for durability, wear resistance, and repeatable performance.
• Thread Type: Left-hand UNF threads (1 in diameter, 12 TPI) crafted for specific applications requiring reverse-threaded fasteners.
• Size: 1 in diameter with 12 threads per inch, designed for 1"-12 UNF left-hand threading.
• Cutting Edges: Precisely ground, multi-edge teeth around the circumference to produce smooth, accurate thread formation.
• Compatibility: Intended for use with a die stock or die holder for controlled rotation and consistent cutting pressure.
• Durability: Trusted Baer craftsmanship with a reputation for precision and long tool life in demanding workshops.

This circular die helps you install or repair external threads on shafts, bolts, or fittings with confidence. The sharp HSS edges provide consistent thread profiles, reducing rework and ensuring a reliable fit with mating parts. Ideal for machinists, fabricators, automotive hobbyists, and maintenance professionals who need dependable, repeatable results on 1"-12 UNF left-hand threads.