The OSG Threading Tap Metric A-Spiral Flute is a right-hand, TiCN-coated tapping tool designed for precise threading of blind holes in a range of materials. Built for production environments, it delivers consistent, long‑lasting performance and reliable thread quality in challenging deep-hole applications.

• Size / Thread: M4 x 0.7 with right‑hand thread for standard internal threading in blind holes.
• Flute Design: A‑Spiral flute optimizes chip evacuation in deep or restricted cavities, reducing snagging and breakage.
• Material: Powder metal body provides high strength, wear resistance, and durability under repeated use.
• Coating: TiCN coating increases hardness and lowers friction, extending tool life and improving wear resistance.
• Application: Specifically engineered for blind-hole tapping (DIN371) to ensure consistent geometry and plug-free threads.

With this tap, you gain consistent internal threads with tight tolerances on blind holes, reducing rework and part scrap. The A‑Spiral flute expels chips efficiently, enabling deeper taps without clogging. The powder metal body withstands demanding cycles, while the TiCN coating lowers wear and friction for longer tool life and steadier performance in high‑throughput environments. Ideal for shops that require reliable, repeatable results when threading difficult geometries and confined spaces.