Kennametal 6131503 KCPM40 Carbide Milling Insert LNPU432SRGE

Product Description

The KENNAMETAL 6131503 is a solid carbide milling insert in the KCPM40 grade, designed for high-performance milling of steel, stainless steel, superalloys, and titanium. The insert carries a dual PVD coating of TiAlN and AlCrN for elevated heat resistance and extended tool life at demanding cutting parameters. It features a rectangular LNPU insert style with a positive rake geometry and chamfered, honed cutting edges that reduce entry forces and improve surface finish. With four usable cutting edges per insert, the 6131503 delivers strong cost-per-edge efficiency for production milling operations. This insert is installed by machinists and tooling technicians on CNC milling machines.

This insert is suited for face milling and shoulder milling applications in ferrous and exotic-alloy environments, including aerospace, energy, and general metalworking. The positive rake geometry and GE chip breaker promote free cutting and reliable chip evacuation when working steel and gummy stainless or titanium alloys. It is compatible with the Kennametal Mill 4-11 cutter series. The ANSI code is LNPU432SRGE and the ISO code is LNPU110408SRGE, which can be used to cross-reference equivalent inserts from other manufacturers.

Key Features

• KCPM40 grade solid carbide substrate with TiAlN and AlCrN PVD dual coating for heat and wear resistance
• Positive rake geometry with chamfered and honed cutting edge style reduces cutting forces
• GE chip breaker promotes controlled chip formation in steel and superalloy cuts
• Four cutting edges per single-sided insert maximize cost-per-edge value
• Right-hand insert orientation; screw-in mounting method for secure clamping
• Conforms to ANSI and ISO insert standards for broad toolholder compatibility

Compatibility

Compatible with the Kennametal Mill 4-11 cutter series. ANSI code LNPU432SRGE and ISO code LNPU110408SRGE can be used to identify equivalent toolholder seats and cross-reference replacements.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Power down and lock out the machine spindle before seating or removing inserts. Use the manufacturer-specified torx or hex key to secure the clamping screw to the toolholder pocket; do not overtighten by hand estimation. Inspect the insert pocket and seating surfaces for chips or debris before installing a fresh insert to ensure proper seating and edge engagement.