Irwin Hanson 313438 Plug Tap 1-1/8"-12 NF HSS High Speed Steel Thread Tap

The Irwin Hanson 313438 is a high-speed steel (HSS) plug tap designed for creating 1-1/8"-12 NF (National Fine) internal threads. This professional-grade tap features a plug style chamfer, making it ideal for through-hole applications and general-purpose threading work where the tap can pass completely through the workpiece.

Key Features:

• High-speed steel construction for durability and long tool life
• 1-1/8"-12 NF thread specification for fine pitch threading
• Plug style with 3-5 chamfered threads for easy starting and smooth cutting
• Precision ground threads ensure accurate thread formation
• Suitable for use in a variety of materials including steel, aluminum, and other metals
• Can be used by hand with a tap wrench or in machine applications

This tap is part of the trusted Irwin Hanson line of threading tools, known for quality and precision in professional and industrial applications. The plug tap design makes it the most versatile style for general threading operations.