The OSG UNF A-Spiral Flute Threading Tap is engineered for precise UNF threading in blind holes, delivering clean, accurate threads in demanding assemblies. It’s ideal for machinists who need reliable performance in tight cavities and high-temperature environments.

• Thread size and type: UNF 7/8-9 threading, optimized for fine-pitch applications in blind holes.
• A-Spiral flute design: specialized flute geometry that promotes efficient chip evacuation and reduces clogging in blind-hole tapping.
• Material and construction: powder metal body for enhanced toughness and wear resistance under demanding cutting conditions.
• Coating: TiCN coating increases surface hardness, lowers friction, and sustains cutting efficiency during high-speed machining.
• Right-hand orientation: standard cutting direction for most UNF tapping tasks, ensuring predictable performance.
• DIN2184-1 compliant: engineered to DIN2184-1 specifications for compatibility and interchangeability with related tooling.

This tap delivers practical, tangible benefits in real-world use. Its spiral flute and coated, durable construction support reliable chip control and consistent thread quality in blind holes, reducing the risk of tool breakage and rework. The TiCN coating helps maintain sharpness and cutting efficiency across multiple deployments, while the powder metal body stands up to wear and heat in demanding materials. Designed for accuracy and repeatability, it’s a dependable choice for precision manufacturing, automotive components, and intricate assemblies where tight tolerances matter.