The OSG UNC A-Spiral Flute Threading Tap is a high-performance tool designed for precision UNC thread tapping in blind holes. Built for machinists and manufacturing environments, it delivers durability and clean threads in demanding applications.

• Size & Thread: 1/4" nominal diameter, 1/4-20 UNC right-hand thread for standard fasteners.
• Material: Powder metal body provides enhanced strength and wear resistance for repeated use.
• Coating: TiCN coating increases hardness and reduces friction to extend tool life and improve cutting performance.
• Flute Design: A-Spiral flute promotes efficient chip evacuation in blind holes, reducing clogging and harnessing smoother cuts.
• Application: Specifically engineered for blind-hole tapping to deliver consistent thread quality and reliable performance.
• Standards: DIN 2184-1 compatible construction to align with common industrial tapping practices.

With this tap, you can achieve clean, accurate UNC threads in blind holes while maximizing tool life. The spiral flute design aids chip removal, lowering the risk of binding in deep or recessed pockets. The TiCN coating minimizes wear and friction, supporting higher-speed tapping and greater precision, which translates to fewer reworks and more efficient production runs.