Kennametal 3769449 TCMT2151FP KCU25 Carbide Turning Insert

Product Description

The KENNAMETAL 3769449 is a solid carbide turning insert designated TCMT2151FP in the KCU25 manufacturer grade. It carries a Physical Vapor Deposition (PVD) AlTiN coating optimized for finishing operations on steel, stainless steel, and superalloys. The insert follows a triangular shape with a 60-degree included angle, a 7-degree relief angle, and a positive rake geometry at 15 degrees. The FP chip breaker is engineered for finishing cuts, delivering controlled chip formation at light depths of cut. With 3 usable cutting edges per insert and a screw-on holding method, this insert suits high-volume turning, facing, and boring operations where tool change efficiency matters.

This insert is intended for CNC lathe and turning center applications in industrial machining environments. It is well suited for finishing passes on steel and stainless steel workpieces where moderate wear resistance and toughness are required. The KCU25 grade also supports cast iron and aluminum and non-ferrous materials, as well as superalloys and titanium, making it a versatile option across multi-material production cells. Installation is performed by machinists and CNC tooling technicians using standard screw-on insert toolholders accepting TCMT-style inserts.

Key Features

• AlTiN PVD coating provides moderate wear resistance and toughness across steel, stainless steel, cast iron, aluminum, and superalloy workpiece materials
• FP chip breaker geometry designed for finishing operations with controlled chip evacuation
• Positive rake angle (15 degrees) and positive side clearance reduce cutting forces on finish cuts
• 3 cutting edges per insert extend tool life and reduce per-edge cost
• Screw-on holding method for secure clamping and repeatable insert indexing
• Honed cutting edge style for improved edge stability on finishing passes
• Conforms to ANSI and ISO standards (ANSI: TCMT2151, ISO: TCMT110204)

Compatibility

Designed for use in screw-on TCMT-style insert toolholders accepting a triangular insert with a 0.25-inch inscribed circle. Suitable for turning, facing, and boring operations per ANSI insert code TCMT2151 and ISO insert code TCMT110204.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Seat the insert fully against the toolholder pocket before tightening the clamping screw. Verify insert orientation for neutral hand geometry before resuming cuts.