The OSG Threading Tap UNF A-Spiral Flute is a high-precision tapping tool designed for UNF threads in blind holes, built for durability in demanding production environments.

• Thread Type: UNF (Unified National Fine) with a 1/2-13 size for precise, tight-tolerance threading
• Flute Design: A-Spiral Flute to optimize chip evacuation in blind-hole applications and reduce clogging
• Material: Powder Metal construction delivers toughness and wear resistance under high-temperature machining
• Coating: TiCN (Titanium Carbonitride) coating increases hardness, lowers friction, and extends tool life
• Direction: Right-Hand threading, suitable for standard tapping operations
• Hole Type: Specifically effective for blind holes, with DIN2184-1 sizing reference
• Size: 1/2 x 13 for common UNF applications in mid-range hole diameters

This combination of UNF threading, spiral-flute geometry, powder-metal substrate, and durable TiCN coating translates to reliable, consistent threads with minimal tool wear. The design supports high-speed tapping while maintaining clean, accurate finishes, making it well-suited for automotive, aerospace, and general precision machining tasks where blind-hole threads are required. The tool’s resilience to heat and wear helps reduce downtime and rework, delivering dependable performance over long production runs.