The OSG UNF Spiral Point Threading Tap is a precision tool designed for through-hole tapping in metalworking projects. Built for machinists and production environments, it delivers accurate threads with durable, long-lasting performance.

• Thread Form: UNF Spiral Point threading tap for through-hole applications, optimized for clean, accurate threads
• Diameter × Pitch: 1/2" diameter with 20 Threads Per Inch (1/2-20 UNF)
• Material: HSS‑E (high-speed steel with cobalt) for increased hardness and heat resistance
• Coating: Steam oxide coating to enhance durability and corrosion resistance
• Design: Spiral point geometry promotes efficient chip evacuation and smooth thread starts
• Application: Specifically engineered for through-hole threading in a range of metals

With its cobalt-enhanced HSS-E composition and robust steam oxide finish, this tap maintains sharpness and endures higher cutting speeds. The spiral point design efficiently channels chips out of the hole, reducing re-cutting and improving thread quality. Ideal for demanding through-hole tapping tasks, it helps production environments achieve consistent results and longer tap life.