Scientific Cutting Tools TMI470-11HA Thread Mill 5/8-11

Product Description

The SCIENTIFIC CUTTING TOOLS TMI470-11HA is a helical flute thread mill designed for cutting internal 5/8-11 UNC threads in machined components. Built from submicron-grade solid carbide and finished with an AlTiN+ coating, it delivers thermal resistance and wear life suited to production and job-shop environments. The tool features 4 right-hand flutes, a 0.47-inch cutting diameter, and a 1.309-inch length of cut. At 4 inches overall length, this is a long-reach configuration that allows threading in deeper bores where standard-length tools cannot reach. Installation and operation are performed by CNC machinists using appropriate CAM-programmed helical interpolation routines.

This thread mill is used in CNC machining centers for producing internal 5/8-11 UNC threaded holes in materials compatible with solid carbide tooling, including steel, stainless steel, aluminum, and hardened alloys. The AlTiN+ coating extends tool life in higher-temperature cuts. The long-reach design makes it appropriate for flanges, housings, manifolds, and other workpieces where bore depth or surrounding geometry limits access. The 1/2-inch shank diameter fits standard ER and hydraulic toolholders commonly found in milling setups.

Key Features

• Cuts internal 5/8-11 UNC threads via helical interpolation on CNC milling machines
• Submicron-grade solid carbide substrate for rigidity and wear resistance
• AlTiN+ coating for elevated thermal resistance in ferrous and hardened materials
• Long-reach configuration with 4-inch overall length for deep-bore access
• 4 right-hand helical flutes for efficient chip evacuation
• No coolant-through design; external coolant or mist lubrication applies

Compatibility

Designed for CNC milling applications requiring internal 5/8-11 UNC thread milling with a 1/2-inch shank and long-reach geometry.

Installation Notes

Thread mills require helical interpolation programmed in the CAM system or control; consult the machine tool manufacturer and tooling documentation for correct toolpath parameters. Secure the 1/2-inch shank in a properly sized, clean toolholder and verify runout before cutting. Always confirm spindle speed, feed rate, and depth-of-cut parameters against the material being machined. Power down and lock out the machining center before performing any tool change.