Kennametal 3752179 CNMG433UN KCK15 Carbide Turning Insert

Product Description

The KENNAMETAL 3752179 is a CNMG433UN-style indexable turning insert in the KENLOC series, manufactured from solid carbide with a multilayer CVD coating of TiN, TiCN, and Al2O3 applied via MTCVD process. It features an 80-degree diamond shape, a neutral hand orientation, and a negative rake angle with a chamfered and honed cutting edge. The insert measures 12.9 mm (0.5077 inches) in length with a 1/2-inch inscribed circle and a 3/64-inch (0.0469-inch) corner radius. It carries 4 cutting edges and is held by clamp or pin. Machinists and CNC turning specialists install this insert on compatible toolholders for metal-cutting operations.

This insert is rated for turning, facing, and boring applications on steel and cast iron workpieces, identified under primary workpiece material codes P and K. The UN chip breaker geometry and chamfered-and-honed edge prep suit general-purpose roughing and semi-finishing passes at controlled depths. Maximum depth of cut is 1.25 mm (0.0492 inches). The insert conforms to ANSI and ISO standards and carries material grade designations C3 and C4, making it suitable for a broad range of production turning environments including manual lathes and CNC turning centers.

Key Features

• 80-degree diamond (CNMG) insert shape with neutral hand and negative rake for stable cutting geometry
• Multilayer CVD coating: TiN / TiCN / Al2O3 for heat resistance and wear life on steel and cast iron
• KCK15 manufacturer grade optimized for primary workpiece materials steel (P) and cast iron (K)
• 4 cutting edges per insert for extended tool economy
• UN chip breaker for general-purpose turning, facing, and boring
• Clamp and pin holding method compatible with KENLOC-series toolholders

Compatibility

Designed as an OEM-style replacement and standard production insert for KENLOC-series CNMG433 toolholders conforming to ANSI and ISO seating standards. Multi-use application includes turning, facing, and boring operations. Industry standard number CNMG433UN applies.

Installation Notes

This insert is installed and indexed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before changing inserts. Seat the insert fully against the toolholder pocket and torque the clamping screw to the toolholder manufacturer specification. Inspect the cutting edge and chip breaker for damage before each use; do not use a visibly chipped or cracked insert.