Kennametal 6131543 Milling Insert KCPM40 Solid Carbide

Product Description

The KENNAMETAL 6131543 is a solid carbide milling insert in the LNGU series, engineered for high-performance indexable milling applications. Manufactured to grade KCPM40 and coated with TiAlN and AlCrN via a PVD process, this insert delivers wear resistance and thermal stability across demanding cutting operations. It features a rectangular shape with a positive rake geometry, a honed cutting edge style, and a GE chip breaker. The insert measures 0.4790 inches in length, 0.2598 inches in width, and 0.1875 inches in thickness, with a corner radius of 0.0310 inches. Four cutting edges are available on this single-sided, right-hand insert, making it a practical choice for milling steel, stainless steel, superalloys, and titanium.

This insert is designed for use in indexable milling cutters compatible with the Mill 4-11 cutter series. It is suited for both roughing and finishing passes on steel, stainless steel, superalloys, and titanium workpieces in production and job-shop environments. The LNGU432ERGE designation follows ANSI standards, and the ISO equivalent code is LNGU110408ERGE. The screw-held mounting method and 90-degree included angle make it a straightforward fit in compatible toolholders. Machinists and tool-room technicians working with CNC milling centers will find this insert applicable across a wide range of ferrous and exotic-alloy applications.

Key Features

• Grade KCPM40 solid carbide substrate with dual TiAlN and AlCrN PVD coating for heat and wear resistance
• 4 cutting edges on a single-sided, right-hand insert for extended tool life per unit
• Positive rake geometry with honed cutting edge and GE chip breaker for controlled chip evacuation
• Corner radius of 0.0310 inches (0.80 mm) for reduced cutting forces at entry
• ANSI code LNGU432ERGE and ISO code LNGU110408ERGE for straightforward cross-referencing
• Compatible with Mill 4-11 cutter series; screw-held insert mounting method

Compatibility

Designed for use with Mill 4-11 series indexable milling cutters. ANSI designation LNGU432ERGE and ISO designation LNGU110408ERGE allow direct cross-referencing to compatible toolholder systems conforming to those standards.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before indexing or replacing inserts. Use the correct torque driver for the clamping screw to ensure proper seating without damaging the insert pocket. Inspect the insert pocket for wear or debris before seating a new insert, as pocket damage will affect runout and surface finish.