Vargus 53534 Threading Insert 11.5 Tpi Internal Un Carbide

Product Description

The VARGUS 53534 is a solid carbide laydown threading insert designed for right-hand internal UN thread cutting at 11.5 threads per inch. Manufactured to VTX grade with a PVD-applied TiAlN coating, this insert delivers wear resistance and thermal stability across a wide range of workpiece materials. It features a 60-degree included angle, a 9.53 mm (3/8 inch) inscribed circle, and a 3.60 mm thickness. The 3IR insert style seats in compatible laydown toolholders and is suited for CNC lathe operators and machinist tradespeople performing precision internal threading operations.

This insert is intended for internal UN thread forms produced on CNC turning centers and manual lathes where a 3IR-style toolholder is used. The TiAlN coating and VTX carbide grade make it applicable across a broad spectrum of workpiece materials, including steel, stainless steel, cast iron, aluminum, non-ferrous metals, and high-temperature alloys. It is a standard-series insert appropriate for general-purpose internal threading in both production and job-shop environments.

Key Features

• Solid carbide VTX grade with PVD TiAlN coating for extended tool life
• Right-hand internal UN thread form, 11.5 TPI, 60-degree included angle
• 3IR insert style with 9.53 mm inscribed circle and 3.60 mm thickness
• Universal workpiece material compatibility including steel, stainless, cast iron, aluminum, and superalloys
• Meets ANSI B1.1:74 thread standards; manufactured under ISO 9001:2008 quality system
• Single tooth per side geometry for controlled chip formation in internal threading

Compatibility

Designed for use in 3IR-style laydown threading toolholders for right-hand internal UN thread applications. Compatible workpiece material codes include H, K, M, N, P, and S per ISO material classification.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and the toolholder is secured before seating or replacing the insert. Use the correct torque wrench and insert screw for the toolholder manufacturer's specification to avoid cracking the carbide. Verify insert orientation matches the right-hand thread direction before initiating a threading pass.