Vargus 64266 Carbide Thread Mill Insert 12 Tpi Un

Product Description

The VARGUS 64266 is a carbide thread mill insert designed for internal UN thread milling applications at 12 threads per inch (TPI). Finished with a TiAlN coating applied via PVD process, this insert is built to handle demanding threading operations on stainless steel and general steel workpieces. The 3I insert style pairs with compatible thread mill bodies to produce accurate UN-form internal threads. It is installed and used by machinists and CNC operators working in precision manufacturing, job shops, and production environments where thread quality and tool life are priorities.

This insert is suited for internal thread milling on steel and stainless steel materials, corresponding to workpiece material codes M and P. It conforms to ANSI B1.1:74 standards, making it appropriate for applications requiring verified UN thread form compliance. Typical use cases include threading bores in components where a tap would be impractical or where thread mill toolpaths offer greater process control.

Key Features

• Carbide substrate provides hardness and wear resistance for threading abrasive and tough materials
• TiAlN coating via PVD process improves heat resistance and extends tool life at elevated cutting speeds
• Internal UN thread form, 12 TPI, conforming to ANSI B1.1:74
• 3I insert style for use with compatible VARGUS thread mill bodies
• VTX manufacturer grade designates the specific carbide and coating combination for steel and stainless steel workpieces
• Sold individually, minimum order quantity of 1

Compatibility

Designed as a replacement insert for compatible VARGUS 3I-style internal thread mill bodies. Intended for use on steel (P) and stainless steel (M) workpiece materials per VARGUS material code classifications. Refer to the VARGUS tooling catalog to confirm body and insert compatibility before ordering.

Installation Notes

Insert installation and replacement should be performed by a qualified machinist or CNC tooling technician with the machine in a safe, locked-out state. Use the correct torque wrench and insert seating tool specified by the tool body manufacturer to avoid cracking the carbide substrate. Verify insert seating and clamp security before running any threading cycle. Always confirm thread form and pitch match the job drawing before cutting.