IRWIN INDUSTRIAL TOOL CO - ACH 8145 1/2-20 NF Plug Tap
The IRWIN INDUSTRIAL TOOL CO - ACH 8145 1/2-20 NF Plug Tap is a precision threading tool designed for creating and restoring internal 1/2-20 National Fine (NF) threads. Built for general-purpose threading tasks, this plug tap is sized to match common fine-thread fasteners used across automotive and mechanical assemblies. Its compact profile fits through or near shoulder holes and is suitable for a wide range of repair, maintenance, and fabrication applications.
Garage Tools And Universal Mechanic Tools
As part of a mechanic's toolkit, this 1/2-20 NF plug tap covers a frequently needed thread series for vehicle and equipment fasteners. It pairs with appropriate drill sizes, tap guides, and lubricants to deliver clean, repeatable threads. The plug tap style typically cuts the first two-thirds of the thread form and is often used where a starter tap is required before finishing operations. Technicians will appreciate its straightforward use for thread restoration and for preparing blind or through holes for NF bolts and studs.
Professional Automotive Shop Tools And Heavy Duty Workshop Tools
This IRWIN 8145 tap is suitable for professional automotive shop environments and heavy-duty workshop tasks where consistent thread geometry matters. It supports repair workflows on engine components, brackets, and assemblies that specify 1/2-20 NF fasteners. When selecting tools for workshop use, consider compatibility with thread pitch gauges, tap wrenches, and power-driven tapping attachments where allowed by the application. Proper alignment and cutting fluid will help extend tool life and improve thread finish.
Included information such as exact thread specification (1/2-20 NF) makes it easy to match this tap to existing hardware and documentation. Store taps in a dry, protected case to avoid damage to cutting edges and to keep thread profiles accurate over multiple uses. Replacement and inventory planning can be simplified by noting the model number and size when stocking mechanic workstations.
Fast shipping.
CALL US NOW
