Kennametal 4176040 Grooving Insert NG3062 KCU10 Carbide

Product Description

The KENNAMETAL 4176040 is a solid carbide grooving insert in the Top Notch series, designed for precision external grooving and parting operations on CNC lathes and turning centers. The insert carries a KCU10 grade designation and an AlTiN coating applied via PVD process, which provides thermal resistance and extended tool life in interrupted cuts and moderate to high-speed turning. The cutting width is 1.58 mm (0.0622 inches) with a maximum depth of cut of 2.39 mm (0.0941 inches). A 0.19 mm corner radius reduces stress concentration at the groove root. This insert is installed by machining professionals in production and job-shop environments.

This insert is suited for grooving, undercutting, and parting on ferrous and non-ferrous workpieces where tight groove tolerances are required. The right-hand orientation matches standard top-notch style clamp holders. The NG-style insert seat and clamp-held mounting method make it compatible with Top Notch series toolholders. The KCU10 grade is positioned for ISO material grades C3 and C4, making it appropriate for cast iron and hardened steel applications where wear resistance is a priority.

Key Features

• Solid carbide construction with PVD-applied AlTiN coating for heat and wear resistance
• 1.58 mm cutting width and 2.39 mm maximum depth of cut for precise narrow grooving
• 0.19 mm corner radius for reduced notching and improved groove root finish
• Right-hand cutting orientation with NG insert style and clamp-held mounting
• KCU10 grade rated for C3 and C4 material classifications
• Top Notch series compatibility for use with matching Kennametal clamp-style holders

Compatibility

Designed for use with Top Notch series clamp-style grooving toolholders that accept NG-style inserts, insert size 3062. Cross-reference manufacturer number NG3062R/L for holder matching.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. The machine spindle must be stopped and the turret fully indexed and locked before seating or removing the insert. Use the appropriate torx or hex key to tighten the clamp to the holder manufacturer specification — do not overtighten, as carbide inserts are brittle and will crack under excessive clamp force. Inspect the insert pocket and clamp for chips or debris before seating a new insert to ensure proper seating and runout.