Iscar 2412761 Threading Insert FLT3R-HCB IC908 Carbide

Product Description

The ISCAR 2412761 is a carbide threading insert designed for precision thread-cutting operations on CNC lathes and turning centers. Carrying the IC908 manufacturer grade with a PVD coating process, this insert delivers consistent performance on both internal and external threading applications. The FLT insert style, combined with the HCB chipbreaker, promotes controlled chip evacuation during threading passes. The Notch-Grip series design locks securely into compatible toolholders, maintaining repeatability across high-volume production runs. At 0.3440 inches thickness and a corner radius of 0.0051 inches, this insert is built for fine-grain carbide precision work to ISO 13399 standards.

This insert handles external threading from 6 to 20 TPI and internal threading from 5 to 12 TPI, covering a wide range of UN and ISO thread standards. It is suited for right-hand threading on both ferrous and non-ferrous materials in job shop and production turning environments. Machinists and CNC operators working on general-purpose threading of fasteners, fittings, and mechanical components will find this insert a reliable choice within the Notch-Grip toolholder system.

Key Features

• IC908 grade carbide with PVD coating for extended tool life on threading passes
• HCB chipbreaker geometry promotes controlled chip flow during internal and external threading
• Covers 6-20 TPI external and 5-12 TPI internal in a single insert
• 60-degree included angle compatible with UN and ISO thread standards
• Fine-grain carbide substrate with 0.0051-inch corner radius for accurate thread form
• Notch-Grip series seating provides rigid, repeatable insert location in the toolholder

Compatibility

Designed for use with Notch-Grip series toolholders accepting FLT 3R insert size. Compatible with both UN and ISO thread standards as stated in the product specifications.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and the turret is indexed to a safe position before changing inserts. Use the correct torque wrench for the clamping screw to avoid cracking the carbide substrate. Verify insert seating in the Notch-Grip pocket before resuming cutting operations.