The OSG Threading Tap Metric A-Spiral Flute, made with 7GX powder metal and TiCN coating, is a high-precision tapping tool designed for blind-hole work in metric threads. It’s ideal for machinists and engineers who demand dependable thread quality in tight or hard-to-reach cavities.

• Size / Thread: M2.5 x 0.45 metric threading for precise blind-hole applications
• Flute Design: A-Spiral flute optimizes chip evacuation in confined holes, reducing clogging
• Material: Powder metal construction delivers durability and improved wear resistance
• Coating: TiCN coating increases surface hardness and lowers friction for longer tool life
• Tolerance: 7GX tolerance class provides an extra-tight thread fit for critical assemblies
• Geometry: Right-hand thread compatible with standard metric tapping practices
• Standards: Suitable for blind-hole tapping per DIN371 specifications

In practice, this tap delivers clean, accurate threads in blind holes with consistent depth and finish. The combination of powder-metal durability, TiCN hardness, and the A-Spiral flute design reduces chip packing and tapping friction, enabling smoother operation and fewer reworks in challenging materials and limited-access environments. This makes it a reliable choice for precision enclosures, automotive components, electronics housings, and other applications where space is constrained and thread integrity matters.