The OSG UNC Spiral Point Threading Tap is a precision through-hole tapping tool designed to deliver accurate UNC threads with durable performance in professional machining environments.

• Thread type: UNC Spiral Point design that powers efficient chip evacuation and clean thread formation in through-hole work
• Material: HSS-E (high-speed steel with cobalt) for enhanced heat resistance and long tool life
• Coating: Steam Oxide coating reduces wear and offers added lubrication under cutting loads
• Through-hole design: Optimized for through-hole applications to produce straight, true threads
• Size: 9/16" diameter with 12 threads per inch (UNC)
• Chip control: Spiral point aids forward chip evacuation to minimize clogging and rework

Equipped to handle demanding materials and high-cycle tapping, this tap maintains sharpness and consistency across multiple operations. The cobalt-enhanced HSS-E construction paired with the Steam Oxide finish provides reliable performance in tougher metals, while the spiral point geometry ensures efficient material removal and clean UNC threads in through-hole components such as fasteners and assemblies.