Kennametal 1114670 NGP3125 K68 Grooving Insert Left Hand

Product Description

The KENNAMETAL 1114670 is a solid carbide grooving insert in the Top Notch series, designed for external grooving and parting operations on CNC lathes and turning centers. Built from uncoated K68 carbide grade, this left-hand insert delivers a cutting width of 0.1252 inches (3.18 mm) and a maximum depth of cut of 0.1500 inches (3.81 mm). The positive rake angle of 5 degrees and a corner radius of 0.0075 inches (0.19 mm) support clean, controlled cuts in non-ferrous metals and cast iron applications where the K68 grade performs best. Machinists and CNC operators install this insert as a direct replacement in compatible Top Notch toolholders.

This insert is suited for precision grooving work on turning equipment in both production shop and job shop environments. The NGP insert style and 3125 insert size make it a fit for tight-tolerance groove profiles. The included angle of 55 degrees and lead angle of 3 degrees define the geometry for specific groove form applications. Because this is a left-hand configuration, it is selected for operations where the tool approaches from the left side of the workpiece or the holder is oriented accordingly. This insert ships individually but carries a minimum order quantity of 5 units.

Key Features

• Insert style NGP in size 3125, Top Notch series toolholder compatibility
• Cutting width of 0.1252 inches (3.18 mm) for precise groove sizing
• Maximum depth of cut of 0.1500 inches (3.81 mm)
• K68 uncoated solid carbide grade, bright finish, suited for non-ferrous and cast iron materials
• Positive rake angle (5 degrees) reduces cutting forces and improves chip flow
• Corner radius of 0.0075 inches (0.19 mm) for controlled groove edge geometry
• Left-hand orientation for specific toolholder and approach direction requirements

Compatibility

Designed for use in KENNAMETAL Top Notch series grooving toolholders that accept the NGP 3125 insert style. Consult the Top Notch system catalog to confirm holder compatibility before ordering.

Installation Notes

Installation is performed by a machinist or CNC tooling technician. Power down and lock out the machine before changing inserts. Use the appropriate Top Notch clamping screw and torque driver as specified by the toolholder documentation - do not overtighten by hand. Verify insert seating and orientation before resuming cuts, and confirm the left-hand designation matches the toolholder configuration in use.