Kennametal 4045416 NPR332 KCU10 Carbide Profiling Insert

Product Description

The KENNAMETAL 4045416 is a carbide profiling and turning insert in the Top Notch series, designated style NPR332 with manufacturer grade KCU10. It features a parallelogram shape with a 3/8-inch inscribed circle, a 3/16-inch thickness, and a 0.79 mm corner radius. The PVD coating process contributes to edge integrity across a wide range of workpiece materials. With four cutting edges and a negative rake angle, this insert is suited for screw-held toolholders used in CNC turning and profiling operations. Machinists and CNC operators install this insert in right-hand tooling setups for precise contour and profile work.

This insert is designed for profiling and turning applications across multiple material families including steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. The broad material grade compatibility spanning P10, P20, M10, M20, K05, K20, N10, N20, S10, S20, and H10 makes it a versatile option across production and job-shop turning environments. It is appropriate for both light and moderate depth-of-cut passes where controlled chip formation and consistent edge life are required.

Key Features

• Carbide substrate with KCU10 grade and PVD coating process for extended cutting edge life
• Four cutting edges per insert for maximized tooling economy
• Right-hand orientation with screw-held insert mounting method
• Negative rake angle at 10 degrees with 0-degree relief angle for rigid, stable cuts
• Maximum depth of cut of 0.2443 inches supports profiling and contouring passes
• ISO code KNGX220408R32 for cross-referencing with equivalent insert standards

Compatibility

Designed for use with Top Notch series right-hand screw-clamped toolholders accepting NPR332 style inserts. Compatible workpiece materials include steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials per ISO material codes P, M, K, N, S, and H.

Installation Notes

Installation is performed by CNC machinists or toolroom technicians using the appropriate screw-clamp toolholder for the NPR332 insert style. Ensure the machine spindle is fully stopped and the turret is indexed away from the workpiece before replacing inserts. Seat the insert fully against the pocket locating surfaces before tightening the clamping screw. Inspect the insert pocket for chips or wear debris prior to seating each new cutting edge.