Vargus 80553 Thread Mill 5/8-11 Internal 4 Flute Solid Carbide

Product Description

The VARGUS 80553 is a helical flute thread mill designed for cutting internal 5/8-11 UN threads in a single helical interpolation pass. Built from micrograin solid carbide and coated with TiCN, it delivers the wear resistance and edge retention required for production threading in ferrous and non-ferrous materials. The tool runs a 0.469 inch cutting diameter, a 1.273 inch length of cut, and a 4-flute right-hand geometry. With a 1/2 inch shank diameter and 3.504 inches overall length, it mounts in standard toolholders on CNC machining centers. Machinists and tooling setters working in job shop, aerospace, or general manufacturing environments are the primary users.

This thread mill is suited for internal threading operations on CNC mills and machining centers where a tapping operation is not practical or where thread-size flexibility from a single tool is required. The 5/8-11 UN thread form is common in structural fastener applications, fixture work, and general mechanical assemblies. The helical flute design supports chip evacuation in blind and through-hole configurations. Coolant-through is not available on this tool, so external coolant or minimum quantity lubrication should be applied at the spindle to keep cutting temperatures in range.

Key Features

• Micrograin solid carbide substrate for rigidity and edge durability in threading applications
• TiCN coating reduces friction and extends tool life in steel and cast iron
• 4-flute right-hand helical geometry promotes efficient chip evacuation
• 0.469 inch cutting diameter sized for 5/8-11 UN internal thread form
• 1.273 inch length of cut accommodates standard thread engagement depths
• 1/2 inch shank diameter fits common ER and milling chuck toolholders

Compatibility

Designed for CNC machining centers capable of helical interpolation and programmed for 5/8-11 UN internal thread milling operations. No specific machine model compatibility was stated in the product data.

Installation Notes

Installation and operation of this tool is performed by a CNC machinist or toolroom technician. Power down and lock out the machine spindle before loading or changing the tool. Secure the 1/2 inch shank in a properly sized toolholder and verify runout before cutting. Program helical interpolation to the correct thread pitch and diameter - do not run this tool as a straight plunge tap.