Kennametal 6131605 Milling Insert KC522M Solid Carbide Altin

Product Description

The KENNAMETAL 6131605 is a solid carbide milling insert in the LNGU style, grade KC522M, finished with a PVD-applied AlTiN coating for extended tool life in demanding cutting applications. The insert carries a rectangular shape with a 90-degree included angle, four usable cutting edges, and a chamfered and honed cutting edge style. It 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. The GEM chip breaker geometry and positive rake angle support efficient chip evacuation and reduced cutting forces across a wide range of workpiece materials. This is a single-sided, right-hand insert held in place by screw clamping.

This insert is suited for milling steel, stainless steel, cast iron, superalloys, and titanium in both roughing and finishing passes. It conforms to ANSI code LNGU432SRGEM and ISO code LNGU110408SRGEM, and is designed for use in the Mill 4-11 cutter series. Typical installations occur in CNC milling centers and machining cells where consistent edge geometry and coating integrity are critical to cycle time and surface finish. The insert size code is 432, and it carries material grade designation C1.

Key Features

• KC522M solid carbide substrate with PVD AlTiN coating for heat and wear resistance
• Four cutting edges per insert in a right-hand LNGU rectangular geometry
• GEM chip breaker with positive rake for efficient chip control
• Chamfered and honed cutting edge style for edge stability and improved surface finish
• Compatible with Mill 4-11 cutter series; screw-clamp insert holding method
• Meets ANSI and ISO dimensional standards (LNGU432SRGEM / LNGU110408SRGEM)

Compatibility

Designed for use with the Kennametal Mill 4-11 cutter series. ANSI code LNGU432SRGEM and ISO code LNGU110408SRGEM confirm dimensional interchangeability with toolholders built to those standards.

Installation Notes

Insert seating and screw torque should follow the toolholder manufacturer specifications for LNGU-style screw-clamp pockets. Ensure the pocket seat and clamp surfaces are clean and free of chips before seating the insert. Always power down and lock out the spindle before changing inserts. Handle carbide inserts carefully to avoid chipping the cutting edges prior to use.