Kennametal 4176126 Grooving Insert KCU10 Solid Carbide Altin

Product Description

The KENNAMETAL 4176126 is a solid carbide grooving insert designed for precision external grooving and parting operations on CNC lathes and turning centers. Manufactured in the Top Notch series, this insert carries a KCU10 grade designation with a PVD-applied AlTiN coating for extended tool life in demanding materials. The left-hand cutting orientation, 2.39 mm cutting width, and a maximum depth of cut of 6.35 mm make it well suited for tight-tolerance groove profiles. The K-style chip breaker geometry promotes controlled chip evacuation in medium to rough turning conditions. Machinists and tooling specialists install this insert using a clamp-style holding method compatible with Top Notch toolholders.

This insert is intended for use in metalworking operations where accurate groove geometry and surface finish are required. The 55-degree included angle and 0.19 mm corner radius support defined shoulder and groove profiles in a range of ferrous and non-ferrous workpiece materials. The KCU10 grade with AlTiN finish targets materials in the C3 and C4 material grade classifications, making it appropriate for applications involving alloy steels, stainless steels, and similar machinable metals in production turning environments.

Key Features

• Solid carbide substrate with PVD AlTiN coating for wear resistance and thermal stability
• 2.39 mm cutting width with a maximum depth of cut of 6.35 mm
• Left-hand cutting orientation for specific toolholder and machine configurations
• K chip breaker geometry for controlled chip flow in medium to rough conditions
• 0.19 mm corner radius and 55-degree included angle for defined groove profiles
• Clamp-style insert holding for secure, repeatable seating in Top Notch toolholders

Compatibility

Designed for use with Top Notch series clamp-style grooving toolholders. Compatible with toolholder seats specified for NGD-style inserts with an insert size designation of 3094. Verify toolholder hand and seat geometry before installation.

Installation Notes

Installation is performed by qualified machinists or tooling technicians on CNC or manual turning equipment. Ensure the machine spindle is fully stopped and all motion axes are locked before changing inserts. Use the appropriate torque wrench and clamping screw as specified by the toolholder manufacturer to seat the insert securely without overtightening. Inspect the toolholder pocket for wear or debris before seating a new insert.