Carmex C12I32UNMT7 Threading Insert Carbide MT7 Un

Product Description

The CARMEX C12I32UNMT7 is a carbide threading insert designed for cutting internal UN-standard threads. Built to the MT7 manufacturer grade with a submicron carbide material grade, this insert delivers consistent thread geometry and edge durability in demanding machining environments. The C12 insert style makes it suitable for use in threading toolholders configured for internal thread applications. Machinists and CNC operators in production and job-shop settings install this insert when threading to ANSI B1.1-1989 specifications. The carbide construction with coated finish supports extended tool life across a range of ferrous and non-ferrous workpiece materials.

This insert is intended for internal threading operations on lathes and turning centers where UN thread forms are required. It is well suited for production threading in aerospace, automotive, hydraulic, and general mechanical assembly applications where ANSI B1.1-1989 thread compliance is specified. The MT7 grade and submicron substrate make it appropriate for medium to high-speed threading passes where edge integrity and dimensional repeatability are priorities. Installation is performed by qualified machinists and CNC tooling technicians.

Key Features

• C12 insert style for compatibility with standard internal threading toolholders
• MT7 manufacturer grade with submicron carbide substrate for edge toughness and wear resistance
• Cuts internal UN threads to ANSI B1.1-1989 specifications
• Carbide coated finish for extended tool life and reduced built-up edge
• Certified to CE, ISO 9001:2015, ISO 13485:2016, ISO 14001:2015, and ISO 45001 quality standards

Compatibility

Designed as an OEM-style replacement threading insert for internal UN thread applications using C12-style insert seating in compatible threading toolholders.

Installation Notes

This insert is installed and replaced by qualified machinists or CNC tooling technicians. Always power down and lock out the machine before changing inserts. Use the correct torque wrench and insert screw specified by the toolholder manufacturer when securing the insert. Verify thread form and pitch against the applicable ANSI B1.1-1989 drawing before beginning a production run.