Engineered for precision pipe-threading in blind-hole applications, the OSG Threading Tap NPT A-Spiral Flute delivers dependable, high-quality NPT threads with every cut. This right-hand tap is built for machinists and shops that demand durability, consistent performance, and efficient chip evacuation in tight spaces.

• Thread Type: NPT (National Pipe Taper) threads designed for blind-hole applications
• Flute Design: A-Spiral flute for effective chip removal and reduced clogging during deep cuts
• Material: Powder metal substrate offering enhanced durability, wear resistance, and toughness
• Coating: TiCN coating provides excellent heat resistance and lowers friction for faster cutting
• Hole Type: Optimized for blind holes to ensure clean, accurate threads
• Drive: Right-hand threading for common NPT installations
• Size: 3/8" diameter, 18 TPI, DIN5156 standard
• Application: Suitable for a variety of materials requiring precise NPT threaded connections

This tap helps you achieve reliable sealing and precise engagement in NPT fittings, with extended tool life thanks to the TiCN coating and the robust powder-metal body. The combination of spiral flutes and a durable substrate supports consistent performance across production runs, even when working in confined blind-hole spaces.