Vargus 52961 Threading Insert 2IR 28 Tpi Internal Un Carbide

Product Description

The VARGUS 52961 is a laydown threading insert designed for internal UN thread cutting at 28 threads per inch. Manufactured from solid carbide with a PVD-applied TiAlN coating, this insert delivers consistent thread form geometry in a right-hand cutting orientation. The 2IR insert style seats in standard laydown toolholders and features a 60-degree included angle conforming to UN thread profile requirements. With an inscribed circle of 0.25 inches and a thickness of 0.125 inches, it fits compact boring bar setups commonly used in CNC turning and manual lathe applications. Licensed machinists and toolroom operators are the primary installers of this insert type.

This insert is suited for internal threading operations on a wide range of workpiece materials. The TiAlN coating and VTX grade designation make it compatible with universal material groups, including ferrous alloys, stainless steels, titanium alloys, aluminum, and non-ferrous metals corresponding to material codes H, K, M, N, P, and S. It is well-suited for production threading in CNC turning centers and manual lathes where a 28 TPI UN internal thread profile is required. The single-tooth-per-side geometry provides clean thread form engagement on each pass.

Key Features

• Solid carbide substrate with PVD TiAlN coating for wear resistance across universal workpiece materials
• 28 TPI cutting profile with 60-degree included angle for UN thread standard conformance per ANSI B1.1:74
• 2IR laydown insert style fits standard internal threading toolholders
• Right-hand cutting orientation for conventional internal threading operations
• Inscribed circle of 0.25 inches supports compact boring bar and small-bore tooling setups
• Manufactured under ISO 9001:2008 quality standards

Compatibility

Designed as an OEM-style replacement laydown threading insert for standard 2IR internal threading toolholders used in CNC turning and manual lathe applications requiring a 28 TPI UN thread profile.

Installation Notes

This insert is installed by machinists or toolroom technicians into compatible 2IR laydown toolholders. Power down and lock out the machine spindle before changing inserts. Use the correct insert clamp screw and torque driver specified by the toolholder manufacturer to secure the insert seat. Inspect the toolholder pocket for chips or wear before seating a new insert to ensure accurate thread form reproduction.