Vargus 64381 Carbide Thread Mill Insert Unj 12 Tpi

Product Description

The VARGUS 64381 is a carbide thread mill insert designed for external UNJ thread milling operations. Built from micrograin carbide with a PVD-applied TiAlN coating, this insert delivers consistent thread quality in demanding cutting environments. The 3E insert style features a 3/8 inch (9.53 mm) inscribed circle and is rated at 12 teeth per inch (TPI). The VTX manufacturer grade designation indicates suitability for high-performance thread milling applications. Installation and use require compatible thread milling toolholders designed for the 3E insert style. Licensed machinists and CNC operators working in aerospace, defense, and precision manufacturing are the primary users of this insert.

This insert is applied in external UNJ thread milling, a thread standard commonly specified in aerospace fastener applications where root radius control is critical. The 12 TPI pitch suits medium-coarse threading work on metallic components. The TiAlN coating provides thermal resistance and wear protection, making this insert appropriate for dry or near-dry machining conditions on ferrous and nickel-based alloys. It is sold individually per package with a minimum order quantity of 10 pieces.

Key Features

• Micrograin carbide substrate for improved edge integrity and wear resistance
• PVD TiAlN coating for thermal stability in high-speed thread milling
• External UNJ thread standard with 12 TPI for aerospace-grade thread profiles
• 3/8 inch (9.53 mm) inscribed circle - 3E insert style
• VTX grade designation for high-performance cutting applications

Compatibility

Designed for use in thread milling toolholders that accept the 3E insert style for external UNJ thread milling operations.

Installation Notes

Insert seating and clamping should be performed per the toolholder manufacturer specifications using appropriate torque tools for insert screws. Ensure the spindle is fully stopped and machine is in a safe state before changing inserts. Verify insert orientation and seating before resuming cutting operations. Consult the thread milling program parameters and toolholder documentation to confirm compatibility with the 3E insert geometry before use.