Kennametal 1184136 Milling Insert KC725M Solid Carbide

Product Description

The KENNAMETAL 1184136 is a solid carbide milling insert in the LFEW series, designed for high-performance metal removal in demanding milling operations. It carries the ISO designation LFEW220432ERLN and is manufactured to the KC725M grade with a multilayer PVD coating of TiN, TiCN, and TiN applied in that sequence. The insert measures 0.6252 inches wide and 0.1875 inches thick, with a corner radius of 0.1260 inches and an inscribed circle of 0.3750 inches. The rectangular shape, 25-degree relief angle, and LN chip breaker geometry make it well suited for finishing and semi-finishing passes where edge stability and surface quality are priorities. Installation is by screw-holding method, right-hand orientation.

This insert is intended for machining steel, stainless steel, superalloys, and titanium, corresponding to ISO material codes P, M, and S. It fits milling toolholders designed for the LFEW insert series with a size code of 3538. Typical applications include face milling, shoulder milling, and contour milling on CNC machining centers in both job-shop and production environments. The KC725M grade and PVD coating combination provides wear resistance and thermal stability at moderate to high cutting speeds on difficult-to-machine alloys. This insert is sold in a minimum order quantity of 5 units, with individual package quantity of 1.

Key Features

• Solid carbide substrate with KC725M grade for toughness and wear resistance in steel and superalloy milling
• Multilayer PVD coating: TiN, TiCN, TiN for improved edge integrity and thermal protection
• LN chip breaker geometry optimized for finishing and semi-finishing cuts
• 25-degree relief angle reduces cutting forces on difficult workpiece materials
• Right-hand, screw-held mounting for secure insert clamping in LFEW-series toolholders
• Corner radius of 0.1260 inches (3.20 mm) balances surface finish quality with edge strength

Compatibility

Designed for use in milling toolholders and cutter bodies configured for LFEW-series inserts with insert size code 3538. Compatible with workpiece materials classified under ISO codes P (steel), M (stainless steel), and S (superalloys and titanium). Material grade designations C5, C6, and C7 apply.

Installation Notes

Installation is performed by a machinist or CNC tooling technician. Power down and lock out the machine spindle before seating or removing inserts. Use the appropriate torx or hex key driver to tighten the clamping screw to the toolholder manufacturer's specified torque; do not overtighten, as this can crack the carbide body. Inspect the insert pocket and seating surfaces for chips or debris before installation to ensure proper insert orientation and full seating.