Kennametal 3752176 CNMG432RP KCK15 Turning Insert

Product Description

The KENNAMETAL 3752176 is a CNMG432RP indexable turning insert in the KCK15 grade, designed for precision material removal on CNC turning centers and manual lathes. It features a multilayer CVD coating stack of TiN, TiCN, and Al2O3 applied via MTCVD process, providing wear resistance and thermal stability during continuous and interrupted cuts. The insert has an 80-degree diamond shape with a negative rake angle of 5 degrees and a chamfered and honed cutting edge style. With 4 usable cutting edges and compatibility with both clamp and pin holding methods, it delivers consistent performance in production turning environments. Machinists and CNC operators in metalworking shops are the primary installers of this insert.

This insert is suited for turning, facing, and boring operations on steel and cast iron workpieces. The RP chip breaker geometry is optimized for medium-duty cuts where chip control and edge stability are priorities. The KENLOC series designation indicates compatibility with Kennametal KENLOC toolholders designed for CNMG-style inserts. Maximum depth of cut is 1.25 mm (0.0492 inches), making this insert well matched to finishing and semi-finishing passes rather than heavy roughing. It conforms to ANSI and ISO standards and carries material grade ratings of C3 and C4.

Key Features

• Multilayer CVD coating: TiN, TiCN, and Al2O3 via MTCVD process for thermal and wear resistance
• 80-degree diamond insert shape with negative rake for strong cutting edge geometry
• RP chip breaker for reliable chip control in medium-duty turning and facing
• 4 cutting edges per insert maximize tool life and cost per edge
• Compatible with both clamp and pin insert holding methods
• Meets ANSI and ISO insert standards; industry standard number CNMG432RP

Compatibility

Designed for use in KENLOC series toolholders accepting CNMG432-style inserts. Rated for primary use on steel (material code P) and cast iron (material code K) workpieces, with secondary compatibility for non-ferrous applications (material code N). Suitable for turning, facing, and boring operations.

Installation Notes

Installation is performed by machinists or CNC setup technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Ensure the insert seat and clamping pocket are clean and free of chips before seating the insert. Use the appropriate torx or hex key to tighten the clamping screw or pin to the toolholder manufacturer's specification; do not overtighten, as this can fracture the carbide insert.