Irwin Hanson 8140 NF Fractional Plug Tap - 7/16-20

The Irwin Hanson 8140 is a 7/16"-20 NF (National Fine) fractional plug tap designed for general-purpose hand threading applications. Manufactured from high carbon steel, this precision tap is ideal for routine maintenance, repair work, and re-threading operations where Class 2B thread accuracy is required.

Key Features:

• High carbon steel construction optimized for hand tapping applications
• Plug style design with 3 to 5 chamfered threads for versatile threading
• Precision ground straight flutes provide rapid chip removal for efficient threading
• Produces Class 2B threads to standard specifications
• Tap size and recommended drill bit size etched on tool for easy identification
• Made in USA with Hanson quality standards

This plug tap is perfect for all general-purpose threading work in through holes and blind holes with sufficient depth. The straight flute design ensures smooth chip evacuation, while the chamfered point style makes starting threads easier than bottoming taps. Ideal for automotive repair, machinery maintenance, and fabrication projects requiring 7/16"-20 fine thread fasteners.