Kennametal 1113608 Grooving Insert NG4189 K68 Carbide

Product Description

The KENNAMETAL 1113608 is a solid carbide grooving insert from the Top Notch series, designed for external grooving and turning operations on CNC lathes and turning centers. Manufactured in grade K68 with a bright uncoated finish, this insert delivers consistent performance in non-ferrous materials, cast iron, and hardened workpieces where coating is not required. The insert features a 4.8 mm cutting width (0.189 inches) and a maximum depth of cut of 6.35 mm (0.250 inches). The neutral rake geometry and 55-degree included angle contribute to stable chip formation during grooving passes. Installation and tooling selection are handled by machinists and CNC operators in production and job-shop environments.

This insert fits Top Notch series toolholders and is suited for precision grooving applications in both production and repair turning operations. With a right-hand cutting orientation and NG-style insert geometry, it is typically applied in OD grooving on ferrous and non-ferrous materials where a controlled groove width and depth are critical. The 3-degree lead angle and 0.57 mm corner radius support accurate groove profiling without full-radius geometry.

Key Features

• Solid carbide K68 grade with bright uncoated finish for use in non-ferrous and cast iron applications
• 4.8 mm cutting width (0.189 inches) for precise groove dimensioning
• Maximum depth of cut 6.35 mm (0.250 inches) within a range of 5.00 mm to 10.00 mm
• Right-hand cutting orientation with neutral rake geometry
• 0.57 mm corner radius and 3-degree lead angle for controlled groove profile
• Top Notch series compatibility for secure, repeatable insert seating

Compatibility

Designed for use with Top Notch series toolholders accepting NG-style inserts with insert seat size 4. Compatible toolholder reference: NG4189R/L.

Installation Notes

Installation is performed by a qualified machinist or CNC tooling technician. The machine spindle must be powered down and the tool turret locked out before changing inserts. Use the appropriate torx or hex key as specified by the toolholder manufacturer to seat the insert securely against the pocket. Do not exceed the maximum depth of cut rating for the insert grade and toolholder combination in use.