Kennametal 4176047 Grooving Insert KCU10 Altin Left Hand

Product Description

The KENNAMETAL 4176047 is a solid carbide grooving insert designed for external grooving and turning operations on CNC lathes and turning centers. Built to the NG insert style in the Top Notch series, it features a KCU10 grade with a PVD-applied AlTiN coating that extends tool life in demanding cuts. The left-hand cutting orientation and K chip breaker geometry suit a range of groove profiles. Cutting width is 1.98 mm and maximum depth of cut is 2.39 mm, making this insert a fit for narrow, precise grooves in ferrous and non-ferrous materials. It is installed via a clamp-type tool holder compatible with the Top Notch system. Licensed machinists and CNC operators are the typical end users.

This insert is suited for light to medium grooving work in production turning environments, including job shops and high-volume machining cells. The metric-measurement insert size 3078 positions it for small-diameter groove applications where dimensional control is critical. The 55-degree included angle and 0.19 mm corner radius support accurate groove geometry and clean side walls. The K chip breaker is optimized to control chip flow at moderate feed rates, reducing the risk of chip packing in tight groove widths.

Key Features

• KCU10 grade solid carbide with PVD AlTiN coating for extended tool life
• Left-hand cutting orientation for right-to-left grooving passes
• 1.98 mm cutting width with maximum depth of cut of 2.39 mm
• K chip breaker geometry for controlled chip evacuation in narrow grooves
• 0.19 mm corner radius for precise groove-bottom definition
• Clamp-type insert holding for secure, repeatable seating in Top Notch holders

Compatibility

Designed for use with Top Notch series clamp-type grooving tool holders that accept NG-style inserts in size 3078. The MSC and manufacturer cross-reference number is NG3078R/LK.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before seating or removing the insert. Use the appropriate Top Notch clamp screw and torque driver per the holder manufacturer's tooling documentation. Inspect the insert pocket and clamp for debris or wear before seating a new insert to ensure proper clamping force and orientation.