Carmex 21E10UNMT7 Carbide Thread Mill Insert 10 Tpi

Product Description

The CARMEX 21E10UNMT7 is a carbide thread mill insert designed for external thread milling in UN thread standard applications. Manufactured from submicron carbide in the MT7 grade with a TiAlN finish, this insert delivers consistent cutting performance across a range of unified thread profiles. It operates at 10 teeth per inch and conforms to ANSI B1.1-1989 specifications. The insert style is 21E with a thickness of 0.185 inches. It is typically installed by machinists and CNC tooling technicians working on precision threading operations in metalworking environments.

This insert is suited for external thread milling on ferrous and non-ferrous materials where a UN thread profile is required. The TiAlN coating provides heat resistance and wear resistance in high-speed cutting conditions. The 21E insert style is used in compatible thread mill bodies and is appropriate for production and maintenance machining environments where consistent thread geometry and repeatable results are required.

Key Features

• Submicron carbide substrate in MT7 grade for durability and edge retention
• TiAlN finish for improved heat and wear resistance during threading operations
• 10 teeth per inch for UN external thread standard per ANSI B1.1-1989
• 21E insert style with a thickness of 0.185 inches
• Non-conical insert geometry for standard thread mill body compatibility
• Certified to CE, ISO 9001:2015, ISO 13485:2016, ISO 14001:2015, and ISO 45001

Compatibility

Designed for use with thread mill bodies that accept the 21E insert style. Intended for external UN thread milling applications conforming to ANSI B1.1-1989. Consult tool body documentation to confirm insert size code 21 compatibility before installation.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before seating or replacing inserts. Use the appropriate torx or hex key at the recommended seating torque specified by the tool body manufacturer - do not exceed the fastener specification for the insert pocket. Inspect the insert pocket and clamping screw for wear or debris before installing a new insert.