The OSG NPSF A-Spiral Flute Threading Tap is built for precision internal threading in blind holes, delivering reliable NPSF threads in fuel-system and hydraulic components. With a robust FORME powder-metal body and a TiCN coating, this tap is engineered for durability, consistent finishes, and longer life in demanding cutting environments.

• Thread Type: NPSF (National Pipe Straight Fuel) with A-Spiral flute geometry for efficient chip evacuation
• Material: FORME powder metal for exceptional wear resistance and durability under high-cutting speeds
• Coating: TiCN coating to reduce friction, improve heat resistance, and extend tool life
• Hand: Right-hand thread for standard internal threading operations
• Application: Specifically designed for cutting NPSF threads in blind holes, ensuring strong, precise engagement
• Standards: DIN5156 compliance to match common industrial threading specifications
• Size/Length: 1 x 11.5 (thread size and overall length as specified for compatible tooling setups)
• Flute Design: A-Spiral flute aids in debris removal and reduces buildup, promoting smoother cut and reduced chatter

Designed to deliver dependable, high-quality threads, this tap supports faster cycle times and cleaner finishes across compatible materials. The combination of FORME powder metal and TiCN coating helps you push through tougher materials with less heat buildup, providing consistent results in repeated production runs. Whether you’re refurbishing fuel-system components or producing new fittings, this tap helps you achieve accurate NPSF threads in blind-hole applications with confidence.