The OSG Threading Tap UNF A-Spiral Flute is a precision tapping tool designed for creating UNF threads in blind holes. Built for professional machinists, it delivers reliable performance, long tool life, and consistently clean threads in demanding production environments.

• Size and thread: 7/16" diameter, 14 TPI UNF with right-hand thread for standard tapping operations.
• Flute design: A-Spiral flute promotes efficient chip evacuation in blind holes, reducing clogging and re-work.
• Material: Powder metal construction delivers durable wear resistance under high-speed cutting.
• Coating: TiCN coating increases hardness and lowers friction to extend tool life and improve cutting performance.
• Hole type: Specifically optimized for blind holes, helping achieve reliable thread formation with fewer defects.
• DIN standard: Complies with DIN2184-1 for dependable threading tap performance.

In practice, this tap enables precise UNF threading in blind holes with smoother operation, reduced chip buildup, and longer service life under high-speed machining. The combination of a powder metal body and TiCN coating supports consistent performance across materials and production runs, helping you finish parts faster with high-quality, repeatable threads.