Kennametal 6131606 KCPM40 Milling Insert LNGU432

Product Description

The KENNAMETAL 6131606 is a solid carbide milling insert in the LNGU series, grade KCPM40, designed for high-performance milling of steel, stainless steel, superalloys, and titanium. The insert features a dual PVD coating of TiAlN and AlCrN applied over the carbide substrate, providing thermal resistance and wear protection at elevated cutting speeds. It carries 4 cutting edges on a single-sided rectangular body with a positive rake geometry and chamfered, honed cutting edge style. The GEM chip breaker configuration and 0.031-inch corner radius support controlled chip flow and edge stability in demanding applications. Licensed HVAC and machining trades professionals recognize this as a precision indexable insert built for reliable, repeatable performance in production milling environments.

The KENNAMETAL 6131606 is suited for face milling, shoulder milling, and general-purpose milling operations on steel and stainless steel workpieces, as well as superalloys and titanium where PVD-coated carbide grades are preferred. It is compatible with the Mill 4-11 cutter series and is mounted via screw-holding method in right-hand orientation. The insert is specified under ANSI code LNGU432SRGEM and ISO code LNGU110408SRGEM, making cross-referencing to cutter bodies and tool catalogs straightforward for machinists and tool cribs operating in production or job shop environments.

Key Features

• Solid carbide substrate with dual PVD coating: TiAlN and AlCrN for heat and wear resistance
• 4 cutting edges on a single-sided rectangular LNGU insert body
• Positive rake geometry with chamfered and honed cutting edge style for smooth entry and edge integrity
• GEM chip breaker for controlled chip evacuation in steel and superalloy cuts
• 0.031-inch (0.80 mm) corner radius balances edge strength and surface finish
• Compatible with Mill 4-11 cutter series; screw-mounted, right-hand orientation

Compatibility

Designed for use with the Mill 4-11 cutter series. ANSI code LNGU432SRGEM and ISO code LNGU110408SRGEM can be used to confirm fitment with compatible cutter bodies. Primary workpiece materials are steel, stainless steel, superalloys, and titanium.

Installation Notes

Indexable milling inserts should be seated and torqued using the cutter body manufacturer's specified screw and recommended procedure for the LNGU pocket style. Power down and lock out the machine spindle before indexing or replacing inserts. Inspect the pocket seat and clamping screw for wear or damage before installing a fresh insert. Handle solid carbide inserts carefully to avoid chipping the cutting edges prior to use.