Precision threading tap designed for micro-scale blind-hole applications. The OSG Metric Fine A-Spiral Flute FORM E tap combines powder-metal construction with TiCN coating to deliver reliable, high-quality M3 x 0.35 threads in hard-to-reach blind holes for precision machinists and manufacturing technologists.

• Geometry: FORM E design tuned for smooth cutting action and improved thread quality in fine-pitch metric threads.
• Flute Design: A-Spiral flute streamlines chip evacuation, reducing clogging and heat buildup during high-speed tapping in blind holes.
• Material: Powder metal body offers enhanced wear resistance and durability for repeated tapping cycles.
• Coating: TiCN coating increases surface hardness and lowers friction, extending tool life and maintaining insert stability.
• Cutting Direction: Right-hand threading standard for common metric taps and typical blind-hole applications.
• Thread Size & Standard: M3 x 0.35 fine pitch, designed in accordance with DIN371 specifications for consistent results.

The combination of FORM E geometry, A-Spiral flutes, and TiCN coating translates into precise, repeatable thread formation in blind holes with reduced risk of breakage or burrs. The powder-metal substrate stands up to demanding production runs, while the coating minimizes wear and friction for longer tool life. Ideal for compact assemblies, electronics housings, and precision mechanical parts where clean, accurate M3 x 0.35 threads in blind holes are essential.