Vargus 80318 Helical Flute Thread Mill 1-8 Internal

Product Description

The VARGUS 80318 is a solid carbide helical flute thread mill designed for cutting internal UN threads. Built from micrograin carbide stock and finished with a TiCN coating, it produces 1-8 threads with a cutting diameter of 0.7460 inches and a length of cut of 2.0630 inches. The overall length is 4.0160 inches. This tool is used by machinists and tooling specialists in precision CNC milling operations where thread accuracy and tool longevity are critical requirements. Coolant-through capability supports chip evacuation and thermal management during cutting.

This thread mill is suited for internal thread milling applications in production and job shop environments running CNC machining centers. The 4-flute, right-hand helical geometry at 8 teeth per inch (TPI) is appropriate for 1-inch nominal diameter internal threads following UN thread standards. It is typically deployed on materials where micrograin carbide and TiCN coating offer extended tool life and wear resistance. Operators working in aerospace, industrial, or general metalworking applications will find this tool applicable wherever high-precision internal threading is required.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• TiCN coating extends tool life and reduces friction in ferrous and non-ferrous materials
• 4 helical flutes with right-hand flute direction for smooth chip flow
• Coolant-through design aids chip evacuation and temperature control
• UN thread standard, 1-8 internal thread profile at 8 TPI
• Cutting diameter of 0.7460 inches with 2.0630 inches length of cut

Compatibility

Designed for use in CNC machining centers capable of helical interpolation for internal thread milling operations following UN thread standards.

Installation Notes

Installation and operation of this tool should be performed by a qualified machinist or CNC tooling technician. Confirm spindle speed, feed rate, and helical interpolation parameters in the CNC program before running the tool. Secure the shank in a collet or milling chuck rated for the 4.0160-inch shank diameter and verify runout before cutting. Engage coolant-through supply prior to initiating the thread milling cycle to maintain proper chip evacuation and tool temperature.