Kennametal 3769418 Turning Insert CCMT3252FP KCU25 Carbide

Product Description

The KENNAMETAL 3769418 is a CCMT3252FP screw-on turning insert in grade KCU25, manufactured from solid carbide with a PVD-applied AlTiN coating. It features an 80-degree diamond (rhombic) insert shape, a 3/8-inch inscribed circle, and a 1/32-inch corner radius. The positive rake geometry and honed cutting edge style support finishing operations in steel, stainless steel, cast iron, aluminum, non-ferrous metals, and superalloys including titanium. With 2 usable cutting edges and a neutral hand orientation, this insert is suited for turning, facing, and boring applications on CNC lathes and turning centers operated by machinists and toolroom professionals.

This insert is designed for finishing cuts on primary workpiece materials including steel (P), stainless steel (M), cast iron (K), aluminum and non-ferrous (N), and superalloys and titanium (S). The KCU25 grade delivers moderate wear resistance and toughness across these material classes. The FP chip breaker geometry is optimized for finishing pass conditions, producing predictable chip control at tighter depths of cut. It is commonly used in production turning and job-shop environments requiring consistent surface finish and dimensional accuracy across a range of workpiece materials.

Key Features

• AlTiN coating applied via PVD process for heat resistance and extended tool life on ferrous and superalloy materials
• 80-degree diamond insert shape (ANSI code CCMT3252 / ISO code CCMT09T308) with positive rake and positive side clearance
• FP chip breaker geometry engineered for finishing operations with controlled chip evacuation
• KCU25 grade provides moderate wear resistance and toughness for multi-material versatility
• Screw-on holding method with honed cutting edge style for secure seating and repeatable edge location
• Multi-use application: compatible with turning, facing, and boring operations

Compatibility

Designed for use in CCMT-style screw-on toolholders conforming to ANSI and ISO standards. Compatible with toolholders accepting a CCMT3252 (ANSI) or CCMT09T308 (ISO) insert geometry. Verify toolholder pocket style and clamping method before installation.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before seating or replacing inserts. Use the appropriate torx or hex key to secure the clamping screw to the toolholder manufacturer's specification — do not overtighten, as this can fracture the insert body. Inspect the toolholder pocket for debris or wear before seating the insert to ensure proper support and edge location.