Vargus 53772 Threading Insert 28 Tpi Un Solid Carbide

Product Description

The VARGUS 53772 is a solid carbide laydown threading insert designed for external UN thread cutting at 28 threads per inch. Built to insert style 3JER with a VCB manufacturer grade, it features a TiAlN coating applied via PVD process for extended wear resistance across a wide range of workpiece materials. The insert has a 60-degree included angle, an inscribed circle of 3/8 inch (9.53 mm), and a thickness of 3.6 mm (approximately 0.142 inches). It is a right-hand insert intended for standard series external threading operations on lathes and turning centers. Machinists and toolroom technicians working in production or job-shop environments are the primary installers.

The VARGUS 53772 is suited for external UN thread cutting on a broad range of workpiece materials, including steels, stainless steels, cast iron, non-ferrous alloys, and high-temperature alloys, as reflected in its universal primary workpiece material classification (Material Codes: H, K, M, N, P, S). It fits standard 3JER-style insert pockets on compatible threading toolholders. The SCB chipbreaker geometry supports controlled chip flow during single-point threading passes, making this insert appropriate for both roughing and finishing thread profiles to ANSI B1.1:74 UN thread standards.

Key Features

• Solid carbide construction with TiAlN PVD coating for heat and wear resistance
• 28 TPI external UN thread profile with 60-degree included angle
• Right-hand cutting direction, 3JER insert style
• SCB chipbreaker for controlled chip management
• Universal material compatibility: steels, stainless, cast iron, non-ferrous, and superalloys
• Meets ANSI B1.1:74 thread standard; manufacturer holds ISO 9001:2008 certification

Compatibility

Designed to fit toolholders with 3JER-style insert pockets; verify pocket geometry and clamping style against the toolholder specification before ordering. Compatible with UN external thread applications per ANSI B1.1:74.

Installation Notes

Installation is performed by a machinist or toolroom technician on a CNC or manual lathe. Power down and lock out the machine spindle before seating or replacing the insert. Ensure the insert pocket is clean and free of chips before clamping. Do not exceed the toolholder manufacturer's recommended clamping torque for the insert size.