The OSG Threading Tap UNF A-Spiral Flute is a precision tapping tool designed for UNF threads in blind holes. Built for machinists and manufacturers, it delivers dependable, consistent performance in challenging blind-hole applications.

• UNF threading for blind holes: specifically engineered to cut Unified National Fine threads in blind-hole workpieces, ensuring accurate engagement and fit.
• A-Spiral flute design: optimized for efficient chip evacuation in confined spaces, reducing the risk of clogging during tapping.
• Powder metal construction: rugged and wear-resistant body that stands up to repeated use and demanding cutting conditions.
• TiCN coating: Titanium Carbonitride coating increases hardness, lowers friction, and extends tool life for high-speed machining.
• Right-hand threading: standard right-hand operation for most common tapping workflows and components.
• DIN2184-1, M10 x 24 sizing: conforms to the DIN2184-1 standard with an M10 x 24 thread form for broad compatibility in mechanical assemblies.

With this tap, you’ll achieve clean, accurate threads in blind holes while minimizing downtime. The TiCN coating reduces heat and wear, enabling higher speeds and longer tool life, and the A-Spiral flute helps maintain steady chip flow even when space is limited. The result is reliable thread formation, fewer reworks, and consistent performance across multiple taps in a production run.