The OSG Threading Tap UNF A-Spiral Point is a precision tapping tool designed for through-hole UNF threading. Built for machines and shops that demand clean, accurate threads, it combines durable powder-metal construction with a high-performance TiCN coating for long tool life.

• UNF 5/16-18: Unified National Fine thread size (5/16-18) ideal for fine-thread through-holes.
• A-Spiral Point: Spiral-point geometry guides chips forward for efficient through-hole tapping and reduced clogging.
• Powder Metal: Robust substrate offering wear resistance and toughness under demanding cutting conditions.
• TiCN Coated: Titanium carbonitride coating lowers friction, improves heat resistance, and extends cutting life.
• Right-Hand: Standard right-hand threading suitable for conventional machining setups and assemblies.
• Through Holes: Optimized for through-hole applications to ensure consistent thread quality from entry to exit.
• DIN2184-1: Compliance with DIN2184-1 standard supports compatibility with common holders and CNC workflows.

With this tap, you can achieve precise, burr-free UNF threads in a range of base materials, from aluminum to tougher steels, while minimizing tool wear. The A-Spiral Point accelerates production by pushing chips ahead of the cutting edge and reducing manual deburring. The TiCN coating helps maintain sharpness longer, reducing downtime for tool changes and increasing overall productivity. This tap is ideal for automotive, electronics housings, and general precision manufacturing where consistent thread quality and reliable hole threading matter.