Vargus 54182 Laydown Threading Insert 3IR 20 Tpi Un

Product Description

The VARGUS 54182 is a solid carbide laydown threading insert designed for internal UN thread cutting on CNC lathes and turning centers. Configured in the 3IR insert style, it cuts right-hand internal threads to the UN standard at 20 threads per inch (TPI) with a 60-degree included angle. The bright, uncoated finish suits applications where coating interference with thread tolerances is a concern. With a 3/8-inch inscribed circle and a thickness of 0.0290 inches, this insert fits standard 3IR toolholders. Machinists and CNC operators working in precision threading applications install this insert for consistent, repeatable internal thread form.

This insert is suited for internal threading operations on ferrous and non-ferrous workpiece materials where an uncoated solid carbide grade provides adequate tool life. The 3IR style is commonly used in production and job-shop environments running UN-specification threads in through-holes and blind holes on CNC turning equipment. Three teeth per side provide multiple usable cutting edges, extending the usable life of each insert before replacement.

Key Features

• 3IR insert style fits standard 3IR internal threading toolholders
• Cuts UN-standard internal threads at 20 TPI with a 60-degree included angle
• Solid carbide construction in VK2P grade, uncoated bright finish
• Right-hand cutting orientation for standard internal threading direction
• 3/8-inch inscribed circle, 0.0290-inch thickness for precise toolholder fit
• 3 teeth per side for multiple usable cutting edges per insert

Compatibility

Designed as an OEM-style replacement threading insert for standard 3IR internal threading toolholders used in CNC turning applications requiring UN-thread form at 20 TPI.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before seating or indexing the insert. Ensure the toolholder pocket and clamping screw are clean and free of chips before installing the insert to maintain proper seating and thread-form accuracy. Do not force the insert into the pocket; confirm the insert style and inscribed circle size match the toolholder specification before installation.