Kennametal 5575829 Milling Insert KCPK30 Solid Carbide Lngu

Product Description

The KENNAMETAL 5575829 is a solid carbide milling insert in the LNGU series, grade KCPK30, designed for indexable milling operations across a broad range of workpiece materials. The insert features a CVD-applied multilayer coating of TiN, TiCN, and Al2O3, which provides thermal resistance and wear protection during high-speed and interrupted cutting. It carries 4 cutting edges on a single-sided, right-hand rectangular body with a 90-degree included angle, a chamfered and honed cutting edge style, and a GEM chip breaker geometry. The inscribed circle measures 0.394 inches, thickness is 0.274 inches, and the corner radius is 0.031 inches. Installation is by screw-clamping. Licensed machinists and tool-room professionals select this insert for its proven CVD coating system and consistent edge geometry across steel and exotic alloy applications.

The 5575829 is rated for milling steel, stainless steel, cast iron, superalloys, and titanium, corresponding to ISO material grades P, M, K, and S. It is compatible with the Kennametal Mill 4-15 cutter series and carries ANSI code LNGU542SRGEM and ISO code LNGU15T608SRGEM. The positive rake angle and GEM chip breaker suit a wide range of depth-of-cut and feed conditions commonly encountered in general machining, die-and-mold work, and aerospace component production. Insert size code is 542 and the series designation is LNGU.

Key Features

• CVD multilayer coating: TiN, TiCN, and Al2O3 for elevated wear and heat resistance
• 4 cutting edges per insert maximizes value per unit in production environments
• GEM chip breaker geometry with chamfered and honed edge for controlled chip formation
• Positive rake design reduces cutting forces on steel and stainless steel applications
• Screw-clamping insert holding method ensures repeatable seating and edge indexing
• Conforms to ANSI and ISO insert standards for cross-reference and sourcing ease

Compatibility

Compatible with the Kennametal Mill 4-15 cutter series. ANSI code LNGU542SRGEM and ISO code LNGU15T608SRGEM apply for cross-reference purposes. Rated for workpiece materials including steel, stainless steel, cast iron, superalloys, and titanium.

Installation Notes

Installation is performed by qualified machinists or tool-crib technicians following the cutter body manufacturer's torque and seating specifications for screw-on indexable inserts. Ensure the machine spindle is fully stopped and locked out before indexing or replacing inserts. Inspect the insert pocket and clamping screw for wear or contamination before seating a new insert. Handle solid carbide inserts with care to avoid chipping edges prior to use.