Baer Circular Die HSS in BSW, Left Hand, 1/8 x 40 is a precise external threading tool built for general-use metalworking. Designed for machinists, hobbyists, and service technicians, it delivers dependable thread formation on cylindrical stock.

• Material: High-Speed Steel (HSS) construction for durability and wear resistance.
• Thread Size: 1/8 in diameter with 40 threads per inch (1/8 x 40).
• Thread Form: British Standard Whitworth (BSW) external threads for compatible fittings.
• Handedness: Left-Hand design to cut and engage left-hand threads when required.
• Cutting Edges: Precisely ground cutting edges for clean, accurate thread formation.
• Compatibility: Designed to be used with a die holder or die stock for controlled rotation and consistent results.

This die supports a range of practical threading tasks—from creating new left-hand threads on small shafts to repairing or fitting lightweight components. The combination of hardened HSS, exact 1/8 x 40 sizing, and a left-hand orientation ensures reliable performance in applications where left-handed threads are specified. When used with a compatible die stock, it provides smooth cutting, reduced chatter, and repeatable results across passes.