The Baer Circular Die HSS BSP Left Hand for General Use – 3/8 x 19 is a precision threading tool designed to cut external BSP threads on cylindrical stock. Built for general use, it’s a reliable choice for machinists, plumbers, and DIY enthusiasts who value clean, consistent threads.

• Material: High-Speed Steel (HSS) construction delivers durability and wear resistance for repeated use.
• Thread type: BSP external threads to accommodate common pipe fittings and hardware.
• Left-hand orientation: Specifically engineered for left-handed threads requiring reverse-turn operation.
• Size: 3/8" diameter with 19 threads per inch for standard small-bore applications.
• Compatibility: Designed to work with standard die stocks or die holders for easy rotation and controlled cutting.
• Cutting edges: Precision-ground cutting edges produce clean, accurate threads with smooth engagement.
• Durability: Hardened body and tight tolerances extend tool life in demanding shop environments.
• Applications: A versatile, general-use circular die suitable for threading metal stock such as steel, aluminum, and copper for BSP fittings.

Using this Baer circular die delivers consistent thread depth and pitch, reducing time spent reworking imperfect threads. The robust HSS construction and precision-ground cutting edges maintain thread form across multiple passes, even on tougher materials. The tool's compatibility with standard die stocks makes setup quick and stable, improving accuracy. For plumbing and hardware projects relying on BSP fittings, this left-hand die ensures proper engagement when reverse-rotation is required. Practical tip: apply a light cutting oil to dampen heat and extend tool life, and secure your workpiece to prevent chatter during threading.