Kennametal 5388082 CNMG643RN Turning Insert KCP10B

Product Description

The KENNAMETAL 5388082 is a CNMG643RN indexable turning insert in the KCP10B grade, designed for productive metal removal in turning, facing, and boring operations. The insert features a multilayer CVD coating system consisting of TiCN, Al2O3, and TiOCN applied via MT-CVD process, delivering high wear resistance and thermal stability at the cutting edge. The 80-degree diamond shape (insert shape code C) provides a strong cutting geometry with a negative rake angle and a chamfered and honed cutting edge style. The RN chip breaker and 0.0469-inch corner radius suit a wide range of general-purpose steel and cast iron applications.

This insert is suited for CNC lathe and turning center operations in job shop and production environments handling steel and cast iron workpieces. With four usable cutting edges and compatibility with both clamp and pin holding methods, the KENLOC series insert delivers consistent performance across turning, facing, and boring passes. It carries ISO code CNMG190612RN and meets both ANSI and ISO insert standards, making it straightforward to cross-reference within standard tooling systems.

Key Features

• Multilayer CVD coating: TiCN, Al2O3, and TiOCN for high heat and wear resistance
• 80-degree diamond insert shape with negative rake for strong, stable cutting geometry
• RN chip breaker with chamfered and honed cutting edge for controlled chip flow
• Four indexable cutting edges per insert for extended tooling value
• Compatible with clamp and pin insert holding methods
• Rated for primary workpiece materials: Steel (P) and Cast Iron (K)

Compatibility

Designed for use in KENLOC series toolholders accepting CNMG643 geometry inserts with clamp or pin retention. Industry standard number CNMG643RN and ISO code CNMG190612RN allow direct cross-reference to compatible toolholder systems meeting ANSI and ISO CNMG standards.

Installation Notes

Installation is performed by licensed machinists or CNC tooling technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torque wrench and manufacturer-specified fastener for the KENLOC clamp or pin system — do not overtighten, as this can fracture the carbide substrate. Inspect the insert pocket seat for chips or debris before seating a new insert to ensure proper contact and accurate tool offset.