Precision threading tap designed for through-hole work, the OSG UNC Spiral Point Threading Tap delivers reliable, high‑quality 1/4-20 UNC threads with durable performance.

• Thread Size & Type: UNC 1/4-20 through-hole threading tap engineered for through-hole applications and consistent thread formation.
• Material: HSS‑E (high-speed steel with cobalt) for enhanced heat resistance and extended tool life in demanding machining tasks.
• Coating: Steam Oxide coating to reduce friction, improve wear resistance, and prolong tap life in production environments.
• Flute/Point Design: Spiral Point geometry promotes efficient chip evacuation and steady penetration during tapping.
• Application: Specifically optimized for through-hole tapping, supporting precise threads and reliable performance across runs.

With this tap, you gain consistent thread quality, reduced heat buildup, and longer intervals between tool changes. The combination of HSS‑E cobalt, steam oxide coating, and the spiral point design for through-hole work makes it a dependable choice for precision machining needs and production workflows.