Kennametal 6231861 Grooving Insert EG6GUN KCU25 Carbide

Product Description

The KENNAMETAL 6231861 is a solid carbide grooving insert in the Beyond Evolution series, designed for precision external grooving and parting operations on CNC lathes and turning centers. It features the EG insert style with a GUN chip breaker geometry and KCU25 grade substrate finished with an Al2O3 PVD coating. The neutral hand orientation suits standard radial grooving setups. With a 0.250-inch cutting width, a 0.118-inch maximum depth of cut, and a 0.032-inch corner radius, this insert delivers consistent dimensional control in medium to high-speed turning applications. It is installed by machinists and toolroom technicians working in production or job-shop environments.

This insert is suited for grooving ferrous and non-ferrous workpiece materials in both roughing and semi-finishing passes within the 0.100-inch to 0.150-inch depth-of-cut range. The Beyond Evolution series is engineered for demanding turning applications where tool life and edge consistency are critical. Typical use cases include O-ring groove machining, snap-ring groove cutting, and profile grooving on shafts and bores in aerospace, automotive, and general manufacturing settings. The insert seats into compatible EG-style grooving toolholders designed for the size-6 insert.

Key Features

• Solid carbide KCU25 grade with Al2O3 PVD coating for wear resistance and thermal stability
• GUN chip breaker geometry promotes controlled chip evacuation during grooving
• 0.250-inch cutting width with a 0.032-inch corner radius for precise groove profiles
• Neutral hand orientation for standard radial grooving setups
• Maximum depth of cut of 0.118 inches, operating range 0.100 to 0.150 inches
• Beyond Evolution series construction targets extended tool life in production turning

Compatibility

Designed for use with EG-style grooving toolholders that accept size-6 grooving inserts. Consult KENNAMETAL toolholder documentation to confirm seat and clamping compatibility before installation.

Installation Notes

Grooving inserts of this type are seated and clamped by qualified machinists or toolroom technicians. Ensure the machine spindle is fully stopped and the turret is in a safe index position before changing inserts. Use the correct torx or hex key to the clamping screw specification listed in the toolholder documentation — do not overtighten, as this can fracture the carbide substrate. Verify insert seating and edge alignment before returning the machine to cycle.