Kennametal 1162526 SPUN120308 KC725M Carbide Milling Insert

Product Description

The KENNAMETAL 1162526 is a solid carbide milling insert manufactured to the SPUN120308 ISO designation and ANSI code SPU422. It features a square insert shape with a neutral hand orientation, a positive rake geometry, and a TiAlN coating applied via PVD process. The insert measures 0.5 inches in length, 0.5 inches in width, and 0.125 inches in thickness, with a 0.031-inch corner radius. Four cutting edges are available per insert, and the maximum depth of cut reaches 0.75 inches. This insert is engineered for use in CNC milling applications across steel, stainless steel, superalloys, and titanium workpiece materials.

This insert is suited for roughing to semi-finishing milling operations on steel and high-temperature alloys in both production shop and job shop environments. The KC725M grade and TiAlN PVD coating are targeted at applications requiring thermal resistance and edge stability at elevated cutting speeds. The flat top chip breaker geometry and honed cutting edge style make this insert a practical choice for general milling passes where controlled chip formation and consistent surface finish are priorities. Licensed trades and machining professionals installing tooling in multi-axis machining centers will find this insert appropriate for demanding material grades.

Key Features

• TiAlN PVD coating provides thermal resistance and oxidation protection at elevated cutting speeds
• Four usable cutting edges per insert reduce tooling cost per edge
• Positive rake geometry with honed cutting edge minimizes cutting forces
• Flat top chip breaker supports controlled chip evacuation on ferrous and exotic alloys
• Neutral hand orientation allows use in a wide range of standard milling holders
• Screw-type insert holding method ensures positive clamping and repeatable indexing

Compatibility

Designed as an OEM-style replacement or direct-fit milling insert for toolholders accepting SPUN120308 ISO or SPU422 ANSI specification inserts. Compatible with material grades C5, C6, and C7 classifications. Primary workpiece materials include steel, stainless steel, superalloys, and titanium per material codes P, M, and S.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Power down and lock out the machining center before indexing or replacing inserts. Use the correct torx or hex key driver specified by the toolholder manufacturer when tightening the clamping screw to avoid insert movement or damage to the seat. Inspect the toolholder pocket and seating surface for chips or wear before seating a new insert.