Baer Circular Die HSS for Metric Coarse Threads is a reliable external threading tool designed to cut precise M42 x 4.5 threads on cylindrical stock. Ideal for machinists, fabricators, and DIY enthusiasts, it combines durable construction with dependable performance for general-purpose threading tasks, including left-hand applications.

• Material: High-speed steel (HSS) for long-lasting wear resistance and consistent threading performance.
• Thread specification: External metric coarse thread, M42 x 4.5, suitable for larger-diameter workpieces.
• Left-hand threading: Built to produce or accommodate left-handed threads for reverse-rotation assemblies.
• Cutting edges: Precisely ground cutting edges to deliver clean, accurate thread forms and smooth engagement with mating parts.
• Compatibility: Designed for use with a die holder or die stock to ensure controlled rotation and steady cutting.
• Applications: Versatile for general threading needs in metalworking, repairs, and prototype fabrication.

This Baer circular die delivers reliable performance in everyday shop tasks—from repairing shafts to creating custom fasteners. Its robust HSS body and carefully ground edges help minimize chatter and cross-threading, while the standard die-stock compatibility keeps operation straightforward and repeatable. For best results, pair with appropriate cutting fluid, steady workholding, and proper die alignment to achieve accurate threads every time.