Designed for professionals who demand precision in blind-hole threading, the OSG UNF Spiral Flute Threading Tap delivers clean, accurate threads with long tool life. Crafted for demanding metalworking tasks, it pairs advanced materials with a geometry optimized for reliability in tight cavities.

• Thread form: UNF spiral flute tap, 1-1/8" diameter, 12 TPI, engineered for tight tolerances in blind holes
• Material: HSS-E (high-speed steel with cobalt) for enhanced hardness and heat resistance
• Coating: Steam Oxide finish to improve wear resistance and extend tool life
• Flute design: Spiral flutes promote efficient chip evacuation, reducing binding in blind-hole tapping
• Application: Ideal for precision threading in blind holes where consistent thread quality is essential
• Size: 1-1/8" nominal diameter with 12 TPI UNF threads

The combination of cobalt-enhanced HSS, durable steam-oxide coating, and purpose-built spiral flutes translates into reliable performance where it matters most. Expect crisp, accurate threads, smoother chip removal, and extended tooling life even in demanding fixtures and assemblies. This tap is well-suited for critical machining tasks that require dependable results, helping you complete projects with precision and efficiency.