The OSG Threading Tap UNC A-Spiral Flute is a high-performance tapping tool designed for professionals working with blind holes. Built for durability and precision, it combines a powder-metal body with TiCN coating to deliver reliable, long-lasting cutting performance on UNC threads.

• Material: Powder-metal substrate delivers exceptional strength and wear resistance in demanding tapping applications.
• Coating: TiCN coating provides increased hardness and reduced friction for longer tool life and smoother cuts.
• Flute Design: A-Spiral flute aids in efficient chip evacuation in blind holes, promoting clean threads and smoother operation.
• Thread Type: UNC threading (Unified National Coarse) for standard, common coarse-thread applications.
• Handedness: Right-hand cutting, suitable for typical tapping setups.
• Size/Length: M4 x 40, precise dimensions for accurate thread formation in standard blind-hole configurations.
• DIN Standard: DIN 2184-1 compliance to ensure compatibility with common tooling practices and standards.
• Applications: Optimized for tapping blind holes with consistent, high-quality thread finish.

Designed to deliver dependable performance in production and precision assemblies, this tap helps you achieve clean, accurate UNC threads in challenging blind-hole environments. The combination of powder-metal durability and TiCN hardness minimizes wear and extension of tool life, while the spiral flute design improves chip removal, reducing the risk of jammed cuts and thread defects. Ideal for professional workshops and manufacturing lines where repeatable results and uptime matter most.