Irwin Hanson 1429ZR 5/16-24 NF Plug Tap High Carbon Steel

The Irwin Hanson 1429ZR is a high-quality plug tap designed for creating 5/16-24 NF (National Fine) internal threads in a variety of materials. Manufactured from high carbon steel, this tap is engineered for reliable hand tapping applications where durability and performance are essential.

Key Features:

• Precision ground straight flutes provide rapid chip removal for efficient threading
• Produces Class 2B threads for standard fastener applications
• 3 to 5 threads chamfered for the most common plug tap configuration
• Tap size and recommended drill bit size etched on the tool for easy identification
• High carbon steel construction for durability in hand tapping operations
• Made in USA with Hanson quality standards

Ideal for general-purpose threading, routine maintenance, repair work, and re-threading applications. The plug tap design makes it the most versatile tap style, suitable for through holes and blind holes where the tap can go nearly to the bottom. Perfect for both professional technicians and DIY mechanics who need reliable threading tools for automotive, machinery, and equipment repair.