The OSG Threading Tap Metric A-Spiral Flute is a high-performance tool designed for precise threading of blind holes in metallic workpieces. It’s built for professional machinists and production environments that demand consistent, reliable threads.

• Size / Thread: M8 x 1.25 metric thread for standard blind-hole applications
• Material: Powder-metal substrate for strength, wear resistance, and long tool life
• Coating: TiCN coating to increase hardness and reduce friction during cutting
• Flute Design: A-Spiral flute enhances chip evacuation in deep or blind holes
• Direction: Right-hand threading for common CNC and manual tapping setups
• Standard: DIN 376 compliance for consistent form and fit in industrial tooling

With its TiCN-coated, powder-metal core and A-Spiral flute geometry, this tap delivers consistent, clean threads in blind holes across a range of materials. The flute design actively directs chips out of the hole, reducing binding and torque, which helps prevent tool breakage and improves finish quality. The hard TiCN coating enhances wear resistance, extending tool life in high-speed production and repetitive tapping tasks. Ideal for manual or CNC tapping in metal parts where reliable blind-hole threads are required, this tap is well-suited for general engineering, automotive components, and precision machinery applications.