Iscar 5604466 Helical Flute Thread Mill 3 Flute Tialn

Product Description

The ISCAR 5604466 is a solid carbide helical flute thread mill designed for internal threading operations on ferrous and non-ferrous materials. This 3-flute tool features a right-hand flute direction and a TiAlN coating for improved heat resistance and tool life in demanding cutting environments. The shank diameter measures 0.2500 inches with a cutting diameter of 0.1260 inches, making it well suited for small-diameter internal threads. It cuts at 32 teeth per inch (TPI) and covers thread sizes #8, #10, and #12. Licensed machinists and CNC operators are the primary users of this tool in production and job shop environments.

This thread mill is intended for internal thread milling on CNC machining centers where helical interpolation is available. It supports UNC, UNEF, and UNF thread standards, giving the user flexibility across common inch-series thread forms in a single tool. Typical applications include threading bored holes in dies, fixtures, housings, and precision components where tap breakage is a concern or thread quality requirements are high. The tool is not equipped for coolant-through delivery.

Key Features

• Solid carbide construction for rigidity and dimensional stability in tight-tolerance threading
• TiAlN coating provides elevated heat resistance and extended tool life in dry or semi-dry cutting
• 3-flute helical design balances chip evacuation and cutting load distribution
• Covers three thread sizes (#8, #10, #12) across UNC, UNEF, and UNF standards
• Right-hand flute direction compatible with standard CNC helical interpolation routines
• No coolant-through requirement simplifies setup on machines without internal coolant

Compatibility

Designed for internal thread milling of #8, #10, and #12 inch-series threads per UNC, UNEF, and UNF standards. Requires a CNC machining center with helical interpolation capability and a tool holder accepting a 0.2500-inch shank diameter.

Installation Notes

Installation and operation of this tool should be performed by a qualified CNC machinist or tooling technician. Verify that the machine spindle and tool holder are clean and properly torqued before use. Program helical interpolation paths according to the target thread pitch and diameter — do not use this tool in a rigid tapping cycle. Inspect the cutting edges for wear or chipping between runs, particularly when threading hardened materials.