Vargus 52853 Laydown Threading Insert 8 Tpi Un Carbide

Product Description

The VARGUS 52853 is a solid carbide laydown threading insert engineered for right-hand internal UN thread cutting at 8 threads per inch. Finished with a PVD-applied TiAlN coating, it delivers heat resistance and extended cutting life across a broad range of workpiece materials. The insert follows a 3IR style geometry with a 60-degree included angle, a 9.53 mm (3/8 inch) inscribed circle, and a thickness of 3.6 mm. It carries the VTX manufacturer grade designation and is manufactured to ANSI B1.1:74 threading standards. CNC lathe operators and machining professionals install this insert in compatible threading toolholders for precision internal thread production.

This insert is suited for internal UN thread applications in both production and job-shop environments. Its universal primary workpiece material rating makes it applicable across carbon steels, stainless steels, cast iron, nonferrous alloys, high-temperature alloys, and hardened materials. It is typically used in CNC turning centers where repeatable thread form accuracy is required on bored or drilled features. The 3IR insert style fits standard laydown-style internal threading toolholders.

Key Features

• Solid carbide substrate with PVD TiAlN coating for thermal resistance and wear life
• 8 TPI UN thread form with 60-degree included angle per ANSI B1.1:74
• 3IR style, right-hand cut, internal threading geometry
• 9.53 mm inscribed circle (3/8 inch) and 3.6 mm thickness for laydown toolholder seating
• Universal material compatibility: carbon steel, stainless, cast iron, nonferrous, superalloys, and hardened materials
• ISO 9001:2008 manufactured quality standard

Compatibility

Designed for use in standard 3IR-style laydown internal threading toolholders. Confirmed compatible with workpiece material codes H, K, M, N, P, and S per the manufacturer classification system.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and the toolholder is securely mounted before seating or changing the insert. Use the correct torx or clamping screw specified by the toolholder manufacturer to achieve proper insert seating - do not overtighten. Verify thread form and pitch with a calibrated thread gauge after initial setup before running production cuts.