Kennametal 5387755 CNMG432MW KCK15B Carbide Turning Insert

Product Description

The KENNAMETAL 5387755 is a CNMG432MW indexable turning insert in grade KCK15B, designed for precision metal cutting on CNC lathes and turning centers. It features a multilayer CVD coating of TiCN, Al2O3, and TiOCN applied via MTCVD process, delivering wear resistance and thermal stability across a range of cutting conditions. The insert has a 1/2 inch inscribed circle, a 0.508 inch length, a 3/16 inch thickness, and a 1/32 inch corner radius. With four cutting edges and a neutral hand orientation, this insert is suited for high-volume production environments where tool life and consistent surface finish are priorities.

This insert is used in turning, facing, and boring operations on steel and cast iron workpieces, corresponding to ISO material groups P and K. The MW chip breaker geometry is optimized for medium-duty cutting passes where chip control and edge stability matter. It is held in place by clamp and pin methods, making it compatible with standard CNMG-style toolholders in the KENLOC series. Machinists and CNC operators in job shops, production facilities, and tool rooms are the primary installers of this insert.

Key Features

• Multilayer CVD coating: TiCN, Al2O3, and TiOCN for extended tool life on ferrous materials
• MW chip breaker geometry optimized for turning and facing on steel and cast iron
• Four usable cutting edges per insert for reduced cost per edge
• Negative rake angle with honed cutting edge for stable, predictable cuts
• Neutral hand orientation fits both right-hand and left-hand toolholder setups
• Clamp and pin holding method provides rigid insert seating during interrupted and continuous cuts

Compatibility

Designed for use in CNMG-style toolholders within the KENLOC series. Rated for steel and cast iron workpiece materials. ISO code CNMG120408MW and industry standard number CNMG432MW apply. Meets ANSI and ISO insert standards for the CNMG form factor.

Installation Notes

Insert indexing and replacement should be performed with the machine fully powered down and the spindle locked. Use the appropriate torque wrench and KENNAMETAL-specified clamping hardware to seat the insert correctly against the pocket locating surfaces. Inspect the toolholder pocket for wear or debris before seating each new edge. Confirm chip breaker orientation and clamping security before resuming cutting operations.