Kennametal 4176119 Grooving Insert NRD4125 KCU10 Carbide

Product Description

The KENNAMETAL 4176119 is a solid carbide grooving insert designed for precision turning and grooving operations on CNC lathes and turning centers. Manufactured in the NRD4125 style and offered in the KCU10 grade with a PVD-applied AlTiN coating, this insert delivers wear resistance and thermal stability during interrupted and continuous cuts. The left-hand orientation suits specific toolholder configurations in the Top Notch series. With a 0.2500 inch (6.35 mm) cutting width and a maximum depth of cut of 0.5000 inch (12.70 mm), it covers a wide range of grooving depths in a single insert geometry. Machinists and CNC turning specialists are the primary users of this insert.

This insert is suited for grooving, profiling, and parting applications on ferrous and non-ferrous workpieces in both job shop and production environments. It is intended for use in Top Notch series toolholders that accept the 4125 insert seat size. The clamp-style holding method provides rigid insert retention during heavy interrupted cuts. The full-radius geometry at 0.1252 inch (3.18 mm) corner radius supports smooth groove-bottom finishes. This insert is sold individually but requires a minimum order quantity of 5 units.

Key Features

• KCU10 grade with PVD AlTiN coating for thermal and wear resistance
• Full radius geometry with 0.1252 inch (3.18 mm) corner radius for smooth groove bottoms
• 0.2500 inch (6.35 mm) cutting width with up to 0.5000 inch (12.70 mm) maximum depth of cut
• Left-hand orientation for compatible Top Notch series toolholders
• Clamp-style insert holding for rigid, repeatable seating
• 55-degree included angle supports V-profile and general grooving geometries

Compatibility

Designed for use with Top Notch series toolholders accepting insert seat size 4 and the NRD4125 insert style. Verify toolholder hand orientation before ordering.

Installation Notes

Insert installation and replacement should be performed by a qualified CNC machinist or toolroom technician with the machine in a full stop and lockout-tagout procedure in place. Use the manufacturer-specified clamp and torque driver for the Top Notch clamping system — do not overtighten or substitute hardware. Inspect the insert seat and clamp for chips or debris before seating the insert. Confirm left-hand orientation matches the toolholder before engaging the first cut.