Vargus 64558 Carbide Thread Mill Insert 11.5 Tpi Npt

Product Description

The VARGUS 64558 is a carbide thread mill insert designed for cutting NPT (National Pipe Taper) threads at 11.5 threads per inch (TPI). It carries a TiAlN coating applied via PVD process, which provides heat resistance and extended tool life during threading operations on non-ferrous and difficult-to-machine workpiece materials. The insert style is 5EI with a size code of 5 and manufacturer grade VTX. It is capable of producing both internal and external NPT threads, making it a versatile single-tool solution for pipe thread milling applications on CNC machining centers.

This insert is suited for thread milling operations in machine shops and manufacturing environments where NPT pipe threads are required on components such as fittings, manifolds, and valve bodies. The 11.5 TPI specification aligns with the ANSI 1.20.3-1976 standard for NPT threads, making it appropriate for pressure-rated pipe thread applications in plumbing, HVAC, and industrial piping systems. It is installed into a compatible TM2VTX thread mill body and is sold as a single insert.

Key Features

• Carbide substrate with VTX grade for wear resistance and cutting performance
• TiAlN coating via PVD process for thermal protection and longer tool life
• Cuts both internal and external NPT threads at 11.5 TPI
• Conforms to ANSI 1.20.3-1976 NPT thread standard
• Insert style 5EI, size code 5, compatible with TM2VTX thread mill body
• Optimized for non-ferrous and specialty workpiece materials (material code N)

Compatibility

Designed for use with the TM2VTX thread mill body. Cuts NPT threads per ANSI 1.20.3-1976 at 11.5 TPI on both internal and external applications.

Installation Notes

Thread mill inserts are installed and serviced by machinists operating CNC milling equipment. Power down and lock out the machine spindle before changing or indexing any insert. Ensure the insert is seated fully and that the clamping screw is torqued according to the tool body manufacturer specifications. Verify thread form and pitch diameter with a calibrated NPT thread gauge after the first cut before continuing production.