Kennametal 4045321 TPGT181505LF KCU10 Carbide Turning Insert

Product Description

The KENNAMETAL 4045321 is a solid carbide turning insert in the TPGT style, designated TPGT181505LF with KCU10 grade. It carries a PVD-applied TiAlN coating engineered for high wear resistance across a range of cutting conditions. The insert features a 60-degree triangular shape with a positive rake angle of 5 degrees and an 11-degree relief angle, contributing to a free-cutting geometry suited for finishing and light machining passes. The inscribed circle measures 0.2188 inches, insert thickness is 0.0938 inches, and the corner radius is 0.0079 inches. Three usable cutting edges and a screw-on holding method make this insert a practical choice for production turning operations. Machinists and CNC operators working in job shops or production facilities will find this insert at home on lathes running steel, stainless, and superalloy workpieces.

This insert is designed for turning, facing, and boring operations. The LF chip breaker geometry targets finishing and light machining applications, generating controlled chips at lower depths of cut. The maximum depth of cut is 0.1262 inches. Primary workpiece materials include steel, stainless steel, and superalloys and titanium, with cast iron and non-ferrous materials also listed as supported applications. The KCU10 grade provides high wear resistance to moderate wear resistance and toughness across the P, M, K, N, S, and H ISO material groups, making it a versatile insert for shops running varied materials on the same machine.

Key Features

• TPGT style with 60-degree triangular shape and positive rake geometry for free-cutting action
• PVD TiAlN coating for high wear resistance on steel, stainless steel, and superalloys
• LF chip breaker optimized for finishing and light machining applications
• Three cutting edges per insert via screw-on mounting method
• Honed cutting edge style reduces micro-chipping at light chip loads
• Compatible with ANSI and ISO insert standards: ANSI TPGT181505, ISO TPGT090202

Compatibility

Designed as a screw-on replacement insert compatible with toolholders accepting TPGT-style inserts per ANSI size code 181505 and ISO size code 090202. Suitable for use in turning, facing, and boring applications across multi-use tooling systems.

Installation Notes

Installation is performed by CNC machinists or tool room technicians. Power down and lock out the machine spindle before changing inserts. Seat the insert firmly against the pocket locating surfaces and torque the clamping screw to the toolholder manufacturer specification using the appropriate Torx or hex key. Inspect the insert pocket for wear, chips, or debris before seating a new insert to ensure correct indexing and edge registration.