Kennametal 1112901 Grooving Insert NFD4189K KC730 Left Hand

Product Description

The KENNAMETAL 1112901 is a solid carbide grooving insert in the Top Notch series, designed for precision grooving and parting operations on CNC lathes and turning centers. It features a KC730 grade carbide substrate with a PVD-applied TiN coating, delivering wear resistance and thermal stability across a range of workpiece materials. The insert has a cutting width of 4.80 mm and supports a maximum depth of cut of 9.53 mm. Left-hand orientation and a positive rake angle of 10 degrees promote clean chip evacuation and reduced cutting forces. Machinists and CNC operators working in production turning environments will find this insert suited to demanding grooving applications.

This insert is intended for use in Top Notch series toolholders and grooving systems in metalworking operations. It is suited for turning and grooving of ferrous and non-ferrous materials falling within material grades C2, C3, and C4. Typical applications include external grooving, parting, and profile turning on medium to large workpieces where controlled chip breaking and consistent groove geometry are required. The K-style chip breaker geometry assists in managing chip flow during moderate to deep cuts in the supported depth range of 5.00 mm to 10.00 mm.

Key Features

• KC730 carbide grade with PVD TiN coating for wear resistance and extended tool life
• 4.80 mm cutting width with a maximum depth of cut of 9.53 mm
• Left-hand insert orientation for specific toolholder and application compatibility
• Positive rake angle of 10 degrees reduces cutting forces and aids chip evacuation
• K-style chip breaker geometry for controlled chip formation
• Corner radius of 0.57 mm (0.0224 inches) for consistent groove profile
• Top Notch series — designed to index precisely in compatible Top Notch toolholders

Compatibility

Designed for use in Top Notch series grooving toolholders accepting insert seat size 4 and insert style NFD, with an included angle of 55 degrees. Compatible with material grades C2, C3, and C4 workpiece materials.

Installation Notes

Installation should be performed by a qualified machinist or CNC technician. Power down and lock out the machine spindle before indexing or replacing the insert. Seat the insert firmly in the toolholder pocket and verify clamping torque per the toolholder manufacturer specification before resuming cuts. Inspect the insert seat and clamping screw for wear or debris before each installation to maintain accurate insert positioning.