Carmex 30E12UNMT7 Carbide Thread Mill Insert 12 Tpi

Product Description

The CARMEX 30E12UNMT7 is a carbide thread mill insert designed for external UN thread milling operations at 12 teeth per inch. Built from submicron carbide in manufacturer grade MT7 with a TiAlN finish, this insert delivers consistent thread form and tool life in demanding milling applications. The 30E insert style and 0.217 inch thickness make it a precise, repeatable option for machinists running UN-standard external threads. Installation and changeout are handled by CNC machinists and toolroom operators working with thread mill toolholders on machining centers.

This insert is used in external thread milling applications requiring UN thread standards per ANSI B1.1-1989. It is suited for production environments where thread accuracy, surface finish, and insert-to-insert consistency are critical. The TiAlN coating provides heat and wear resistance during high-speed or dry milling passes. Typical applications include threading on ferrous and nonferrous workpieces where a single-profile thread mill approach is preferred over tapping.

Key Features

• Submicron carbide substrate in MT7 grade for wear resistance and edge integrity
• TiAlN finish improves heat resistance and extends tool life in dry or semi-dry cutting
• External UN thread form per ANSI B1.1-1989
• 12 teeth per inch for accurate single-profile thread milling
• Non-conical insert geometry in 30E style
• Compliant with CE, ISO 9001:2015, ISO 13485:2016, ISO 14001:2015, and ISO 45001 standards

Compatibility

Designed for use with compatible CARMEX 30E-series thread mill toolholders requiring the 30E insert style. Intended for external UN thread milling applications conforming to ANSI B1.1-1989.

Installation Notes

Thread mill inserts are installed and indexed by CNC machinists using appropriate insert keys or torx drivers specified by the toolholder manufacturer. Ensure the spindle is fully stopped and the machine is in a safe state before changing inserts. Verify insert seating and clamp torque per toolholder documentation before resuming cutting operations. Minimum order quantity requirements apply - confirm quantity before purchasing for job lot needs.