Kennametal 1113599 NG3189 K68 Grooving Insert Left Hand

Product Description

The KENNAMETAL 1113599 is a solid carbide grooving insert in the Top Notch series, designed for external grooving and parting operations on CNC lathes and turning centers. It carries the K68 manufacturer grade and is supplied bright and uncoated, making it well suited for machining non-ferrous materials and cast iron where a sharp, uncoated edge is preferred. The insert features a left-hand orientation, a 4.80 mm cutting width, and a maximum depth of cut of 3.81 mm. Licensed machinists and CNC turning technicians are the primary installers. The 0.57 mm corner radius and neutral rake geometry contribute to controlled chip flow during grooving passes.

This insert is intended for use in turning applications where precise groove widths and depths are required, including groove, part-off, and profiling operations on lathes equipped with Top Notch-compatible toolholders. It is sized to the 3189 insert size designation within the Top Notch system. Typical applications include light to medium grooving on non-ferrous alloys, aluminum, brass, and similar materials where an uncoated carbide grade performs reliably. The left-hand orientation suits specific toolholder configurations where the cutting force direction requires a left-hand insert geometry.

Key Features

• Solid carbide construction, K68 grade, bright and uncoated finish
• Left-hand insert orientation for compatible Top Notch toolholders
• 4.80 mm cutting width with a maximum depth of cut of 3.81 mm
• 0.57 mm corner radius with neutral rake geometry
• 55-degree included angle and 3-degree lead angle for controlled engagement
• NG3189 insert style within the Top Notch series platform

Compatibility

Designed for use with Top Notch series toolholders that accept the NG3189 insert size in a left-hand configuration. Verify toolholder pocket specifications before installation to confirm proper seating and clamping.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist following the toolholder manufacturer's torque and clamping procedures. Ensure the machine spindle is fully stopped and the lathe is locked out before changing inserts. Inspect the toolholder pocket for debris or wear before seating the insert. Handle carbide inserts with care to avoid chipping the cutting edge prior to use.