Baer Circular Die HSS in BSW, Left Hand, is a precision external-threading tool designed for general‑purpose use on cylindrical stock. Built for reliability in both professional workshops and DIY setups, it delivers clean, accurate left‑hand threads with consistent performance.

• Material: High-speed steel (HSS) construction for durability and sharp, long‑lasting cutting edges.
• Thread specification: Left‑hand external threads in British Standard Whitworth (BSW) format, 7/8" diameter with 9 threads per inch.
• Application: Ideal for external threading on round stock; designed to be used with a die stock or die holder for controlled rotation.
• Cutting edges: Precisely ground edges to ensure clean, accurate thread formation and smooth engagement with mating parts.
• Compatibility: Works with standard threading setups in a variety of metalworking environments for general use.
• Durability: Baer’s engineered tooling focus on longevity and consistent performance across multiple jobs.

This circular die enables repeatable left‑hand thread production on shafts, rods, and cylindrical components. The HSS composition maintains cutting performance through bulk metal work, while the circular geometry distributes cutting forces evenly for improved control and reduced chatter. It’s especially suited for applications requiring left‑hand fasteners or reversible thread direction, and it pairs well with proper lubrication and a quality die stock to maximize tool life and thread accuracy.