Scientific Cutting Tools TMLR470-11ELA Thread Mill 5/8-11

Product Description

The SCIENTIFIC CUTTING TOOLS TMLR470-11ELA is a solid carbide helical flute thread mill designed for cutting internal 5/8-11 UNC threads. Built from submicron-grade carbide and finished with an AlTiN+ coating, this long-reach tool handles demanding threading operations in machining centers and CNC mills. The right-hand flute direction and four-flute configuration deliver clean thread profiles at 11 teeth per inch. With a 0.4700-inch cutting diameter and a 1.7500-inch length of cut, it is suited for through and blind-hole applications where a single-point tap may not be practical. Licensed machinists and tooling specialists are the primary users of this tool.

This thread mill is applied in precision machining environments requiring internal UNC thread generation in materials where carbide tooling and AlTiN+ coating provide optimal wear resistance and heat management. The long-reach design extends access into deeper bores while maintaining rigidity. It is commonly used in job shops, aerospace component machining, and general manufacturing where repeatable thread quality is critical. The 0.6250-inch minimum nominal bore diameter defines the smallest hole this tool can produce threads in.

Key Features

• Solid submicron carbide construction for extended tool life in hard and abrasive materials
• AlTiN+ coating provides high-temperature resistance and reduced friction at the cutting edge
• 4-flute helical design delivers smooth chip evacuation during internal threading
• Long-reach geometry allows threading in deeper bores not accessible with standard-length tools
• Right-hand flute direction compatible with standard CNC helical interpolation routines
• No coolant-through design keeps setup simple for machines without high-pressure coolant systems

Compatibility

Designed for use in CNC machining centers capable of helical interpolation for internal UNC 5/8-11 thread milling applications with a minimum bore diameter of 0.6250 inches.

Installation Notes

This tool is installed and operated by machinists and CNC programmers using helical interpolation G-code routines on a machining center. Verify spindle speed, feed rate, and helical pitch settings match the tool manufacturer recommendations before running the program. Ensure the tool is seated and torqued correctly in a precision collet or shrink-fit holder to minimize runout. Do not use this thread mill in manual mills or hand-held drilling equipment.