Engineered for through-hole threading, the OSG UNC Spiral Point Threading Tap in No. 1-64 UNC delivers precise, consistent threads with long tool life. Built from HSS‑E cobalt and finished with Steam Oxide, it stands up to demanding machining workflows and extended production runs.

• Thread Standard: UNC Spiral Point for through-hole tapping, sized No. 1-64 UNC
• Material: HSS‑E (high-speed steel with cobalt) for enhanced wear resistance and heat tolerance
• Coating: Steam Oxide finish to improve lubricity and extend tool life in repetitive cuts
• Design: Spiral Point geometry that promotes efficient chip evacuation in through-hole applications
• Application: General-purpose tapping for through-hole work in steels and related materials

This combination of robust core material, protective coating, and chip‑evacuating geometry helps you achieve clean, accurate threads with fewer interruptions. The through-hole suitability and the No. 1‑64 UNC size make it a reliable choice for precision fastener threads in production and prototyping alike, delivering dependable results across common steel and alloy projects.