Iscar 5669485 Carbide Thread Mill Insert IC908 Un 14 Tpi

Product Description

The ISCAR 5669485 is a carbide thread mill insert designed for internal thread milling operations. Built to the MT LNHU insert style with a size code of 2104, this insert carries the IC908 manufacturer grade and features a TiAlN coating applied via PVD process. It is engineered to cut UN-standard threads at 14 teeth per inch (TPI). The submicron carbide substrate and PVD TiAlN finish provide wear resistance and thermal stability during high-demand milling. This insert belongs to ISCAR's MillThread series and is sold individually with a minimum order quantity of two pieces.

This insert is intended for internal thread milling on CNC machining centers and milling machines across a range of workpiece materials. It is rated for use on material groups H, K, M, P, and S, covering hardened steels, cast irons, stainless steels, carbon steels, and heat-resistant superalloys. Typical applications include producing internal UN threads in bored holes where a thread mill toolpath is programmed on the machine. It is primarily installed by CNC machinists and tooling specialists in precision manufacturing, aerospace, automotive, and general metalworking environments.

Key Features

• IC908 grade submicron carbide substrate for toughness and wear resistance
• TiAlN coating via PVD process for thermal and oxidation resistance
• Cuts internal UN threads at 14 TPI
• Compatible with H, K, M, P, and S workpiece material groups
• MT LNHU insert style, size code 2104, part of the MillThread series
• Conforms to ISO 13399 tooling data standards

Compatibility

Designed as an OEM-style replacement or direct-use insert for ISCAR MillThread series thread mill bodies accepting MT LNHU 2104-style inserts for internal UN thread milling applications.

Installation Notes

This insert is installed and changed by qualified CNC machinists or tooling technicians. Ensure the machine spindle is fully stopped and the machine is placed in an appropriate lockout state before indexing or replacing inserts. Use the correct torx or clamping key specified for the tool body to achieve proper seating torque without over-tightening. Verify insert orientation and thread direction programming before resuming cutting operations.