Scientific Cutting Tools TMI120-32H Thread Mill 10-32

Product Description

The SCIENTIFIC CUTTING TOOLS TMI120-32H is a helical flute thread mill designed for cutting internal 10-32 UNF threads in machined components. Built from submicron-grade solid carbide, this long-reach tool delivers precise thread geometry at 32 teeth per inch with a 0.12-inch cutting diameter and a 0.326-inch length of cut. The three right-hand helical flutes provide clean chip evacuation during the milling cycle. With a 0.25-inch shank diameter and 2.5-inch overall length, the TMI120-32H fits standard toolholders used in CNC machining centers. It is installed and operated by machinists and tooling technicians working in precision manufacturing environments.

This thread mill is suited for internal thread milling operations on small-diameter 10-32 UNF threaded features in ferrous and non-ferrous workpiece materials. The long-reach design allows access to recessed or deep-set bore locations where standard-length tools cannot reach. The bright, uncoated finish makes it appropriate for applications where coating buildup or contamination is a concern, such as medical, aerospace, or general precision machining work. A single tool can produce a range of thread depths by adjusting the helical interpolation path on the CNC controller.

Key Features

• Submicron-grade solid carbide construction for wear resistance and dimensional stability
• 10-32 UNF internal thread profile at 32 teeth per inch
• Three right-hand helical flutes for efficient chip removal
• Long-reach thread mill type for access to recessed thread locations
• Bright, uncoated finish suitable for broad material compatibility
• 0.25-inch shank diameter fits standard CNC toolholding systems

Compatibility

Designed for use in CNC machining centers capable of helical interpolation for internal 10-32 UNF thread milling operations with a 0.25-inch shank toolholder.

Installation Notes

This tool is installed and run by qualified machinists on CNC machining centers with helical interpolation capability. Secure the shank firmly in a collet or end mill holder rated for the shank diameter before running. Verify spindle speed, feed rate, and helical pitch settings against the toolmaker's recommended parameters for the workpiece material before cutting. Do not use this tool for thread turning or tapping operations.