Vargus 50422 Threading Insert 2IR18NPT Solid Carbide 18 Tpi

Product Description

The VARGUS 50422 is a laydown threading insert designed for right-hand internal NPT thread cutting at 18 threads per inch. Manufactured from solid carbide with a PVD-applied TiAlN coating, this insert is built for durability and thermal resistance in demanding threading applications. It carries a 6.35 mm inscribed circle and a thickness of 3.17 mm, with a 60-degree included angle conforming to standard NPT thread form geometry. Licensed HVAC, plumbing, and mechanical contractors, as well as machining professionals, will find this insert suited for CNC lathes and manual threading operations where precision NPT internal threads are required.

This insert is intended for internal threading operations producing NPT pipe threads at 18 TPI. It is compatible with a wide range of workpiece materials, including ferrous and non-ferrous metals, stainless, titanium alloys, cast iron, and high-temperature alloys, as indicated by the universal material codes H, K, M, N, P, and S. The VTX grade designation reflects VARGUS's standard carbide grade optimized for threading across these material categories. It is sold individually per package, with a minimum order quantity of 10 units.

Key Features

• Solid carbide construction with PVD TiAlN coating for extended tool life and heat resistance
• Right-hand internal NPT thread form at 18 TPI, 60-degree included angle
• 2IR insert style with 6.35 mm (1/4 inch) inscribed circle
• 3.17 mm insert thickness for stable laydown seating
• Universal workpiece material compatibility: H, K, M, N, P, S material groups
• Manufactured to ISO 9001:2008 and USAS B2.1:1968 standards

Compatibility

Designed for use in standard 2IR laydown threading toolholders configured for internal NPT thread cutting. Suitable for universal workpiece material groups H, K, M, N, P, and S as specified by the manufacturer.

Installation Notes

Insert installation should be performed by a qualified machinist or tooling technician using the appropriate torque wrench and insert clamp screw specified by the toolholder manufacturer. Power down and lock out the machine before seating or replacing the insert. Ensure the toolholder pocket is clean and free of debris before seating to maintain accurate thread form geometry. Verify thread standard compliance with USAS B2.1:1968 when producing NPT threads for pressure-rated piping applications.