Kennametal 4045418 NPR508 KCU10 Carbide Profiling Insert

Product Description

The KENNAMETAL 4045418 is a carbide profiling insert in the Top Notch series, designed for turning and profiling operations on CNC and manual lathes. It carries the NPR508 insert style designation and is manufactured to ISO code KCGX110302R15. The insert features a KCU10 grade with a PVD coating process, a parallelogram shape with a 55-degree included angle, and a negative rake geometry. With a 0.2490-inch inscribed circle and a 0.0080-inch corner radius, it delivers consistent edge geometry suited to precision profiling passes. Right-hand cutting orientation and a screw-in holding method make it straightforward to seat and index. Weighing 0.01 pounds, it is a single-piece packaged insert with a minimum order quantity of 5 units.

This insert is intended for profiling and turning applications across a broad range of workpiece materials, including steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. It is applicable to ISO material groups P, M, K, N, S, and H, covering grade ratings P10, P20, M10, M20, K05, K20, N10, N20, S10, S20, and H10. Typical install scenarios include finish and semi-finish profiling on production turning centers and manual lathes where a Top Notch-style toolholder accepting NPR508 inserts is mounted. The four available cutting edges allow the insert to be indexed before replacement, reducing per-edge tooling cost in high-cycle environments.

Key Features

• KCU10 grade with PVD coating process for wear resistance across multiple material groups
• Parallelogram shape with 55-degree included angle suited to profiling contours and turning passes
• Negative rake geometry with 0-degree relief angle for stable cutting under screw-clamping force
• Four cutting edges per insert for extended service life before replacement
• Right-hand cutting orientation with common chipbreaker configuration
• Broad ISO material group coverage: P, M, K, N, S, and H

Compatibility

Designed for use in Top Notch series toolholders that accept NPR508 inserts. Compatible systems conform to the NPR508 and KCGX110302R15 standards as noted in the product specifications.

Installation Notes

Insert seating and indexing should be performed by a qualified machinist or CNC tooling technician with the machine fully stopped and the spindle locked. Use the correct torque wrench and screw driver bit specified by the toolholder manufacturer when tightening the clamping screw to avoid insert or pocket damage. Inspect the toolholder pocket and locating surfaces for chips or wear before seating a new insert. Follow the machine tool manufacturer and shop safety guidelines when handling carbide inserts, as edges are sharp and carbide is brittle.