Kennametal 1113531 Grooving Insert NR3031 K68 Carbide

Product Description

The KENNAMETAL 1113531 is a solid carbide grooving insert designed for external grooving and turning operations on CNC lathes and turning centers. Built to the NR3031 insert style in Kennametal's Top Notch series, this left-hand insert carries a manufacturer grade of K68 with a bright, uncoated finish. It features a 1.58 mm cutting width and a maximum depth of cut of 2.39 mm, making it well suited for shallow, precise groove profiles. The full-radius geometry with a 0.79 mm corner radius and a neutral rake angle support consistent chip formation and dimensional accuracy on ferrous and non-ferrous workpiece materials.

This insert is intended for use in production turning environments where repeatable groove width and depth control are required. The Top Notch series is a common platform in job shops and production facilities running moderate to high spindle speeds on materials matching the C3 material grade classification. Left-hand orientation means it is used on toolholders configured for right-to-left feed direction. Machinists and CNC operators performing OD grooving, parting-adjacent operations, or profile turning on small-diameter workpieces will find this insert a direct fit for compatible Top Notch toolholders.

Key Features

• Solid carbide construction in manufacturer grade K68 for wear resistance
• Bright, uncoated finish suitable for applications where coating is not required
• 1.58 mm cutting width with a full radius corner at 0.79 mm
• Maximum depth of cut of 2.39 mm within the 2.00 to 3.00 mm depth-of-cut range
• Neutral rake geometry for balanced cutting forces
• Left-hand insert orientation for right-to-left feed toolholder setups
• NR3031 insert size within the Top Notch series for broad toolholder availability

Compatibility

Designed for use in Top Notch series toolholders accepting NR3031 left-hand grooving inserts. Verify toolholder hand and insert seat dimensions before installation. No specific compatible model numbers were provided in the input data.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician with the machine in a fully stopped and locked-out state before insert indexing or replacement. Use the appropriate Torx or hex key specified by the toolholder manufacturer to seat and clamp the insert - do not over-torque the clamp screw. Inspect the insert pocket for chips or debris before seating the new insert to ensure proper contact and prevent premature edge failure. Always verify insert orientation matches toolholder hand before initiating a test cut.