Kennametal 4109910 NR3047K KCU25 Grooving Insert

Product Description

The KENNAMETAL 4109910 is a solid carbide grooving insert in the Top Notch series, designed for precision external grooving and turning operations on CNC lathes and turning centers. It features an AlTiN coating applied via PVD process, which provides heat and wear resistance for extended tool life in demanding cutting conditions. The insert is left-hand orientation with a 2.39 mm cutting width and a maximum depth of cut of 3.81 mm. The NR insert style with a K chip breaker geometry is suited for controlled chip evacuation during grooving passes. Installation uses a clamp-style holding method compatible with Top Notch toolholders.

This insert is intended for use in metalworking applications including grooving, profiling, and undercutting on ferrous and non-ferrous materials. It is sized for the 3047 insert seat and is appropriate for production turning environments where consistent groove width and depth accuracy are required. The full-radius corner geometry with a 1.19 mm corner radius supports clean groove floor finishes. Material grades C2 and C6 indicate suitability across a range of workpiece materials. Machinists and CNC operators in job shops, production facilities, and tool rooms are the primary installers.

Key Features

• AlTiN coating via PVD process for elevated heat resistance and extended wear life
• 2.39 mm cutting width with a maximum depth of cut of 3.81 mm
• Full radius corner geometry with 1.19 mm corner radius for accurate groove profiles
• K chip breaker for reliable chip control during grooving operations
• Clamp-style holding method compatible with Top Notch series toolholders
• Left-hand orientation; insert size 3047; 55-degree included angle

Compatibility

Designed for use with Top Notch series clamp-style grooving toolholders that accept the NR3047 insert seat. Consult toolholder documentation to confirm proper seat and clamp compatibility before installation.

Installation Notes

Installation should be performed by a qualified machinist or CNC toolsetter with the machine powered down and the spindle locked before changing inserts. Use the appropriate Top Notch clamp screw and torque driver as specified by the toolholder manufacturer. Inspect the insert pocket seat for debris or damage before seating the insert. Do not exceed the maximum depth of cut rating for this insert grade and geometry.