Carmex C12I20UNMT7 Threading Insert Un MT7 Tialn

Product Description

The CARMEX C12I20UNMT7 is an indexable threading insert designed for internal UN thread cutting on CNC lathes and threading equipment. Built to insert style C12 with a MT7 manufacturer grade and submicron carbide material grade, this insert carries a TiAlN finish that improves heat resistance and tool life during threading operations. At 0.03 pounds, it is a compact, single-piece insert intended for precision threading of internal Unified National thread forms. Licensed machinists and CNC operators working in production or job-shop environments are the primary users of this tooling.

This insert is suited for internal threading applications where UN thread standards are required. The 20 TPI thread pitch designation makes it applicable to a range of standard fastener and fitting thread profiles machined in ferrous and non-ferrous materials. It is typically used in automated or semi-automated CNC turning centers where consistent thread form accuracy and repeatability are priorities. The TiAlN coating supports dry or semi-dry cutting strategies commonly favored in high-volume threading operations.

Key Features

• Insert style C12 for internal threading geometry
• MT7 manufacturer grade with submicron carbide substrate for edge toughness
• TiAlN finish for improved thermal resistance and extended tool life
• UN thread standard at 20 TPI for Unified National internal thread profiles
• Single-piece indexable insert for quick changeover in production environments

Compatibility

Designed as an OEM-style indexable threading insert for internal UN thread applications in compatible C12 insert-style toolholders used on CNC lathes and threading equipment.

Installation Notes

Installation should be performed by a qualified machinist or CNC technician following the toolholder manufacturer's indexing and torque procedures. Ensure the machine spindle is fully stopped and locked out before changing inserts. Seat the insert fully in the pocket and verify clamp security before resuming cutting operations. Follow applicable shop safety standards for CNC tooling changes.