Kennametal 1114345 Grooving Insert KC730 Carbide Tin

Product Description

The KENNAMETAL 1114345 is a solid carbide grooving insert in the Top Notch series, designed for external grooving and cutoff operations on CNC lathes and turning centers. It carries a PVD-applied TiN coating and a KC730 grade designation, placing it in the C2, C3, and C4 material grade range. The insert delivers a 4.8 mm (0.1890 inch) cutting width with a maximum depth of cut of 9.53 mm (0.3752 inch). A positive rake angle of 10 degrees and a K-style chip breaker work together to support controlled chip flow during grooving passes. Installed by machinists and CNC operators, this insert suits production environments where consistent groove geometry is required.

The 1114345 is suited for grooving applications in general metalworking and production turning where the Top Notch tooling system is in use. It handles materials within the C2, C3, and C4 grade range, covering a broad spectrum of steels and cast irons. The right-hand orientation and 3-degree lead angle position it for standard external grooving setups. The K chip breaker geometry is optimized for maintaining chip control across the supported depth-of-cut range of 5.00 mm to 10.00 mm.

Key Features

• KC730 grade solid carbide with PVD TiN coating for wear resistance
• 4.8 mm cutting width with a maximum depth of cut of 9.53 mm
• Positive rake angle (10 degrees) reduces cutting forces during grooving
• K-style chip breaker promotes controlled chip evacuation
• Right-hand insert orientation with a 3-degree lead angle
• Corner radius of 0.57 mm (0.0225 inch) for defined groove edge geometry

Compatibility

Designed for use with Top Notch series grooving toolholders accepting insert seat size 4 and insert style NGD. Also referenced under MSC/Manufacturer Number NGD4189R/LK.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator with the machine in a full stop and locked-out condition before changing inserts. Use the appropriate torx or insert-clamping key specified for the Top Notch toolholder to seat the insert securely without over-torquing the clamp screw. Verify insert orientation and seating before resuming spindle operation. Inspect the insert seat for chips or debris that could affect insert stability and groove accuracy.