Kennametal 5641365 CNMG432RP KCK20B Turning Insert

Product Description

The KENNAMETAL 5641365 is a CNMG432RP indexable turning insert in grade KCK20B, designed for general turning, facing, and boring operations on steel and cast iron. The insert features a multilayer CVD coating sequence of TiCN, Al2O3, and TiOCN applied via MTCVD process, providing wear resistance and thermal stability across a range of cutting conditions. The diamond 80-degree included angle and negative rake geometry deliver strength at the cutting edge. The RP chip breaker with a chamfered and honed cutting edge style helps control chip flow and reduces edge chipping during interrupted or continuous cuts. This insert is used by machinists and CNC lathe operators in production and job-shop environments.

Suited for turning and facing steel and cast iron workpieces in both roughing and semi-finishing applications. The KENLOC series design is compatible with standard CNMG toolholders using clamp and pin holding methods. With four usable cutting edges per insert, the 5641365 is a practical choice for shops running high tool-change frequency or cost-per-edge programs. The neutral hand orientation makes it adaptable to both right-hand and left-hand toolholder configurations. This insert conforms to ANSI and ISO standards, with an ISO code of CNMG120408RP and an industry standard number of CNMG432RP.

Key Features

• Multilayer CVD coating: TiCN, Al2O3, and TiOCN for wear and heat resistance on steel and cast iron
• RP chip breaker with chamfered and honed edge for reliable chip control and edge stability
• 80-degree diamond insert shape (code C) with negative rake for high cutting-edge strength
• Four cutting edges per insert for extended tool life and reduced cost per edge
• Clamp and pin holding method compatible with standard CNMG KENLOC toolholders
• Conforms to ANSI and ISO standards; ISO code CNMG120408RP

Compatibility

Designed for use in CNMG-style toolholders using clamp and pin holding, conforming to ANSI and ISO CNMG120408RP specifications. Primary workpiece materials are steel (ISO material code P) and cast iron (ISO material code K). Suitable for turning, facing, and boring operations.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Seat the insert fully against the toolholder pocket and verify the clamp and pin are secured before resuming cuts. Inspect the insert pocket and clamp hardware for wear or debris each time the insert is indexed to maintain positioning accuracy.