OSG Threading Tap - UNF Spiral Point HSS-E - Steam Oxide Coated - Through Hole - No. 3 x 56

Meet the OSG UNF Spiral Point Threading Tap—designed for professionals who demand precise, reliable through-hole threads in metalworking projects. Crafted from HSS-E cobalt and finished with a durable Steam Oxide coating, this tap delivers strong performance under demanding machining conditions.

• Thread type: UNF Spiral Point geometry optimized for through-hole tapping with efficient chip evacuation
• Material: HSS-E (high-speed steel with cobalt) for superior wear resistance and heat tolerance
• Coating: Steam Oxide coating enhances durability and protects against wear in tough materials
• Through-hole design: Precisely engineered for through-hole applications to deliver consistent thread quality
• Size: No. 3 x 56 tapping size for fine UNF threads on smaller fasteners
• Brand/Technology: OSG’s advanced threading technology supports accurate, repeatable results
• Chip evacuation: Spiral point design promotes efficient chip flow, reducing binding and heat buildup
• Applications: Ideal for steel, aluminum, and other common metals in fixtures, small-bore assemblies, and precision components

This tap contributes to a dependable threading process by combining a robust HSS-E core with a coating that extends tool life. The spiral point helps you start threads cleanly and push chips out of the hole, supporting quicker cycles and fewer reworks. Its through-hole compatibility makes it a solid choice for production runs and critical assemblies where consistent, high-quality UNF threads matter.