Scientific Cutting Tools TMI120-24HA Thread Mill 10-24

Product Description

The SCIENTIFIC CUTTING TOOLS TMI120-24HA is a solid carbide helical flute thread mill designed for cutting internal 10-24 UNC threads. It features three right-hand flutes and an AlTiN+ coating that extends tool life in abrasive materials and elevated cutting temperatures. The cutting diameter is 0.1200 inches with a length of cut of 0.3510 inches and an overall length of 2.5000 inches. This tool is used in CNC machining centers where thread milling is preferred over tapping for precision, blind-hole applications, or harder workpiece materials. The submicron carbide grade provides edge integrity at tight tolerances.

This thread mill is suited for machining shops and production environments cutting 10-24 internal threads in steel, stainless steel, aluminum, and similar materials. The long-reach mill type makes it appropriate for applications requiring extended projection from the spindle. It is run on CNC machining centers using helical interpolation routines. No coolant-through capability is present, so external coolant or air blast should be used to clear chips from the cutting zone during operation.

Key Features

• Cuts 10-24 UNC internal threads at 24 teeth per inch
• Three right-hand helical flutes for balanced cutting action
• AlTiN+ coating for heat resistance and extended tool life
• Submicron solid carbide grade for edge stability in hard materials
• Long-reach mill type for deep or restricted-access thread features
• 0.3510 inch length of cut accommodates standard thread depth requirements

Compatibility

Designed as an OEM-style thread milling tool for CNC machining centers capable of helical interpolation, suitable for cutting 10-24 UNC internal threads in a range of workpiece materials.

Installation Notes

This tool is installed and operated by machinists or CNC programmers on machining centers using helical interpolation. Verify spindle speed, feed rate, and helical pitch programming before running the first part. Secure the shank firmly in a collet or end mill holder rated for the 1/4 inch shank diameter. No coolant-through path is present, so ensure adequate external coolant or air blast is directed at the cutting zone to prevent chip packing in the flutes.