The OSG UNC Spiral Point Threading Tap is a precision tool built for reliable through-hole threading in metalworking. With HSS‑E (high-speed steel with cobalt) and a durable steam oxide coating, it’s designed to deliver consistent, high‑quality threads and extended tool life in demanding machining tasks.

• Thread form: UNC Spiral Point design for efficient cutting and forward chip evacuation in through-hole tapping.
• Size: No. 8 x 32 UNC, a standard coarse thread used in a wide range ofThrough-Hole applications.
• Material: HSS‑E (high-speed steel with cobalt) for enhanced hardness and wear resistance under high cutting speeds.
• Coating: Steam oxide finish that improves wear resistance and helps protect the tool in tough environments.
• Through-hole design: Optimized specifically for through-hole tapping, delivering clean thread engagement and better hole alignment.

This tap enables precise thread formation with reduced risk of over-cutting or chatter, making it ideal for production runs and critical assemblies. The combination of cobalt-enhanced HSS and a steam oxide coating supports sustained cutting performance, even in tougher metals, while the spiral point geometry promotes smooth chip flow away from the cutting edge. For shops and operators who require dependable No. 8 UNC threads in through-holes, this tap offers a balanced blend of durability, efficiency, and accuracy.