Carmex 14I32UNMT7 Carbide Thread Mill Insert 32 Tpi

Product Description

The CARMEX 14I32UNMT7 is a carbide thread mill insert engineered for internal UN threading operations at 32 teeth per inch (TPI). Built from submicron carbide in the MT7 grade, it carries a TiAlN coating that extends tool life in demanding cutting conditions. The insert measures 0.122 inches (3.1 mm) thick and carries a conical designation of No, making it suited for standard internal thread milling applications. Licensed machinists and tooling technicians install this insert into compatible thread mill bodies to generate precise UN-standard internal threads in ferrous and non-ferrous workpieces.

This insert is intended for internal thread milling on UN-standard thread forms, covering applications in general machining, production shops, and precision manufacturing environments. The 32 TPI pitch is commonly applied in fine-thread work on smaller fastener features and threaded bores. The TiAlN finish makes this insert a viable choice in higher-speed or higher-temperature cutting scenarios where coating integrity directly affects thread quality and tool longevity.

Key Features

• Submicron carbide substrate in MT7 grade for consistent edge integrity
• TiAlN coating for elevated heat and wear resistance during thread milling
• 32 TPI for UN-standard internal fine-thread applications
• Insert style 14I with 0.122-inch (3.1 mm) thickness for stable seating
• Non-conical geometry for straightforward thread mill body compatibility
• Compliant with ANSI B1.1-1989 UN thread standard

Compatibility

Designed for use in thread mill tooling bodies that accept the 14I insert style for internal UN threading at 32 TPI. Verify body manufacturer specifications before installation.

Installation Notes

Thread mill inserts are installed and serviced by machinists or tooling technicians familiar with rotary thread milling operations. Power down and lock out the machine spindle before changing inserts. Use a calibrated torque wrench per the tool body manufacturer specifications when seating the insert clamp screw. Inspect the insert seat and clamping surfaces for chips or debris before installation to ensure proper seating and thread accuracy.