Kennametal 1114223 Grooving Insert NR3078K KC730 Carbide

Product Description

The KENNAMETAL 1114223 is a solid carbide grooving insert in the Top Notch series, designed for external grooving and turning operations on CNC lathes and turning centers. It carries the KC730 manufacturer grade with a PVD-applied TiN finish, delivering wear resistance suitable for steel and cast iron machining at moderate to aggressive cutting parameters. The insert features a positive rake angle of 10 degrees and a full corner radius of 1.98 mm, promoting clean chip formation and reduced cutting forces. Machinists and tool-and-die professionals install this insert into compatible Top Notch toolholders for production grooving work requiring consistent dimensional repeatability.

This insert is suited for external grooving applications in mid-volume and high-volume production environments, including automotive component machining, hydraulic fitting manufacture, and general precision turning. The right-hand orientation and K chip breaker geometry make it appropriate for use on conventional CNC turning setups where chip control and groove width accuracy are critical. Material grades C2, C3, and C4 indicate suitability across a range of workpiece materials including steel, stainless, and cast iron.

Key Features

• Solid carbide construction with PVD TiN coating for extended tool life
• Cutting width of 3.96 mm for precise groove dimensioning
• Maximum depth of cut of 3.81 mm, with a range of 3.00 to 4.00 mm
• Full radius insert with 1.98 mm corner radius reduces stress concentration at groove bottom
• Positive 10-degree rake angle promotes lower cutting forces and cleaner chip evacuation
• K chip breaker geometry optimized for controlled chip flow in grooving operations

Compatibility

Designed for use with Top Notch series toolholders compatible with NR-style inserts. Consult the toolholder manufacturer specifications to confirm seat geometry and clamping compatibility before installation.

Installation Notes

This insert is installed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and the tool turret is de-energized before changing inserts. Use the appropriate torque wrench and insert clamp hardware specified by the toolholder manufacturer - do not overtighten the clamping screw. Inspect the insert seat for chips or debris before seating the new insert to ensure proper contact and runout.