Vargus 64316 Carbide Thread Mill Insert 11.5 Tpi Npt

Product Description

The VARGUS 64316 is a VTK-grade carbide thread mill insert designed for cutting NPT (National Pipe Taper) threads at 11.5 threads per inch (TPI). Sized as a 3EI insert with an insert size code of 3, it handles both internal and external thread milling in a single tool. Carbide construction delivers the edge retention and thermal stability required for consistent thread form across production runs. This insert is a direct-fit replacement component for compatible VARGUS thread mill bodies used in CNC machining operations.

This insert is suited for shops performing NPT thread milling on pipe fittings, manifolds, and fluid-system components where tapered thread form and leak-free sealing are required. The 11.5 TPI pitch matches the standard NPT specification per USAS B2.1:1968, making it appropriate for pipe thread work in plumbing, HVAC, and industrial fluid-handling applications. Machinists and toolroom technicians working on CNC mills or multi-axis machining centers are the primary installers.

Key Features

• VTK carbide grade for extended tool life in thread milling applications
• 11.5 TPI pitch compatible with NPT internal and external thread forms
• 3EI insert style fits corresponding VARGUS thread mill insert pockets
• Conforms to USAS B2.1:1968 NPT thread standard
• Cuts both internal and external threads without changeover

Compatibility

Designed as an OEM-style replacement insert for VARGUS thread mill bodies accepting the 3EI insert style with a size code of 3. Specific body compatibility should be confirmed against VARGUS tooling documentation prior to ordering.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist following the tool body manufacturer torque guidelines for insert screws. Ensure the spindle is fully stopped and the machine is in a safe state before swapping inserts. Inspect the insert pocket for debris or damage before seating the new insert. Thread mill toolpaths and compensation values should be verified in CAM or control software after any insert change.