Vargus 50421 Threading Insert 2IR 18 Npt VM7 Carbide

Product Description

The VARGUS 50421 is a carbide threading insert designed for cutting internal NPT (National Pipe Taper) threads in a right-hand orientation. Built to the VM7 manufacturer grade and finished with a PVD multi-layer coating, this insert delivers consistent thread form and extended tool life in demanding production environments. The 2IR insert style suits standard internal threading toolholders commonly found in CNC lathes and threading machines. Machinists and tooling specialists rely on this grade for its wear resistance and edge integrity when producing tapered pipe threads in metal workpieces.

This insert is applied in machine shops and manufacturing facilities where internal NPT threaded connections are required on pipe fittings, couplings, valves, and similar components. The NPT thread standard is widely used across plumbing, HVAC, oil and gas, and industrial piping systems. The right-hand thread orientation covers the large majority of standard pipe thread applications. Sold individually, making it practical for both single-insert replacement and tooling replenishment in higher-volume operations.

Key Features

• Carbide substrate provides high hardness and wear resistance for threading ferrous and non-ferrous metals
• VM7 manufacturer grade with PVD multi-layer coating for extended insert life and reduced heat buildup
• 2IR insert style for compatibility with standard internal threading toolholders
• NPT thread standard produces tapered pipe threads for pressure-tight connections
• Right-hand thread orientation for standard pipe thread cutting operations
• Sold as a single insert with a minimum order quantity of one

Compatibility

Designed as an OEM-style replacement or production insert for internal threading toolholders accepting the 2IR insert style in CNC lathe and threading machine applications.

Installation Notes

Installation of threading inserts should be performed by a qualified machinist or tooling technician. Power down and lock out the machine before changing any insert. Seat the insert fully and securely in the toolholder pocket before resuming operation. Follow the toolholder manufacturer guidelines for clamping torque and insert indexing procedures.