Carmex 30E14UNMT7 Carbide Thread Mill Insert Un 14 Tpi

Product Description

The CARMEX 30E14UNMT7 is a carbide thread mill insert designed for external UN thread milling applications. Built to MT7 grade from submicron carbide, it carries a TiAlN coating that extends cutting life in ferrous and hardened materials. With 14 teeth per inch and an insert style designation of 30E, this insert delivers consistent thread geometry on external profiles. It is a single-insert packaged item typically used in thread milling operations on machining centers and CNC mills. Machinists and tooling specialists select this insert for repeatable thread quality in production and maintenance environments.

This insert is suited for external UN thread milling on metalworking equipment where consistent pitch and surface finish are required. The 30E insert style fits corresponding thread mill toolholders designed for that geometry. At 14 TPI, it covers common UN thread pitches across a range of fastener and component sizes. The TiAlN finish makes it appropriate for dry or semi-dry cutting environments where heat resistance is a priority. It is used in job shops, production facilities, and toolroom applications where UN-standard threads are machined to specification.

Key Features

• Submicron carbide substrate for improved toughness and wear resistance
• MT7 manufacturer grade optimized for thread milling performance
• TiAlN coating extends tool life in high-temperature cutting conditions
• External UN thread profile at 14 TPI for standard unified thread applications
• Non-conical insert geometry for straightforward thread mill holder mounting
• Insert style 30E for direct fitment into compatible thread mill bodies

Compatibility

Designed as an OEM-style replacement or direct-fit insert for thread mill toolholders accepting the 30E insert style in external UN thread milling applications.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and the tool is secured in a proper toolholder before seating or removing inserts. Use the correct torque driver or insert key specified by the toolholder manufacturer to avoid cracking the carbide substrate. Follow applicable shop safety procedures and verify thread geometry with a calibrated thread gauge after first-piece setup.