Kennametal 2257314 Milling Insert SEPT13T3AGENGD KC725M

Product Description

The KENNAMETAL 2257314 is a solid carbide milling insert manufactured to the SEPT13T3AGENGD ISO geometry for use in precision milling applications. It carries the KC725M manufacturer grade and features a multilayer PVD coating of TiN, TiCN, and TiN that improves wear resistance and edge retention when cutting ferrous and difficult-to-machine materials. The square insert body has a 90-degree included angle, a neutral hand orientation, and a GD chip breaker geometry. At 0.1563 inches thick with an inscribed circle of 0.4724 inches and a 0.0591-inch corner radius, this insert is suited for finishing and semi-finishing operations. Licensed machinists and CNC tooling technicians are the primary installers.

This insert is designed for milling steel, stainless steel, superalloys, and titanium, covering ISO material grades C5, C6, and C7 with primary workpiece material codes P, M, and S. It is retained in the cutter body by a screw-holding method, making it compatible with standard SEPT-series milling cutter bodies designed for 13-size inserts. Typical applications include face milling, shoulder milling, and pocketing operations on CNC machining centers in both job-shop and production environments where consistent chip control and coating durability are required across varying feed and speed conditions.

Key Features

• KC725M grade with multilayer PVD TiN/TiCN/TiN coating for extended tool life in steel and stainless cutting
• Square SEPT insert shape with 90-degree included angle for versatile milling orientations
• GD chip breaker geometry for controlled chip formation during semi-finishing and finishing passes
• Neutral hand designation allows use in both conventional and climb milling setups
• Screw-on holding method provides secure, repeatable seating in compatible cutter bodies
• PVD coating process preserves sharp cutting edge geometry and reduces built-up edge on superalloys and titanium

Compatibility

Designed for use in SEPT-series milling cutter bodies accepting size 13T3 square inserts with a screw-holding method. Suitable for machining steel, stainless steel, superalloys, and titanium workpieces at ISO material grades C5, C6, and C7.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the spindle before seating or replacing inserts. Use the correct Torx or hex key for the clamping screw and snug to manufacturer-specified torque using the cutter body documentation, not generic values. Inspect the insert pocket and clamping screw for wear or debris before installing a new insert to ensure proper seating and runout control.