The Baer Circular Die HSS UNC Left Hand is a precision external-threading tool designed for general metalworking use. Built for reliability, it creates strong left-handed UNC threads (1/2" diameter, 13 TPI) on cylindrical stock with controlled, smooth cutting.

• Material: High-Speed Steel (HSS) for durability and the ability to be resharpened for long life.
• Thread Type: Left-Hand UNC external threads (1/2" diameter, 13 TPI).
• Cutting Edges: Precisely ground teeth to form clean, accurate threads with smooth engagement.
• Compatibility: Designed for use with a die stock or die holder for stable rotation and controlled cutting.
• Size: 1/2 x 13 to fit standard 1/2" stock and UNC pitch.
• Durability: Robust construction that resists wear and provides reliable performance through repeated use.
• Applications: Ideal for general-purpose external threading on shafts, bolts, and other cylindrical stock.

With this die, you can produce dependable left-handed threads quickly and consistently, making it suitable for assemblies or repairs that require reverse-threaded fasteners. The HSS material maintains a sharp cutting edge longer, while the precisely ground teeth ensure accurate thread profiles that mate smoothly with nuts and fittings. Using a die stock or die holder promotes even pressure, reduces the risk of thread misalignment, and helps you achieve clean, repeatable results across projects.