The OSG UNC Spiral Point Threading Tap is engineered for precise No. 5-40 UNC threading in through-hole work. Crafted from HSS-E (high-speed steel with cobalt) and finished with a Steam Oxide coating, this tap delivers durability, heat resistance, and dependable performance in demanding machining tasks.

• Thread size: No. 5-40 UNC, optimized for accurate, repeatable through-hole threading.
• Material: HSS-E (high-speed steel with cobalt) for enhanced hardness and wear resistance at higher speeds.
• Coating: Steam oxide coating reduces friction and provides added corrosion resistance to extend tool life.
• Design: Spiral point geometry facilitates efficient chip evacuation and smooth entry, ideal for through-hole tapping.
• Application: Specifically suited for through-hole threading applications where clean, consistent threads are essential.

This tap is built to deliver consistent thread quality, helping you assemble components with confidence. The combination of cobalt-enhanced HSS and a durable steam oxide finish supports repeatable performance across runs, making it a reliable choice for critical machining tasks and production environments.