Kennametal 5941099 Grooving Insert KCU25 Solid Carbide Altin

Product Description

The KENNAMETAL 5941099 is a solid carbide grooving insert from the Beyond Evolution series, designed for precision grooving operations on CNC lathes and turning centers. It features an EG-U insert style with a GUP chip breaker geometry and a KCU25 grade substrate finished with a PVD-applied AlTiN coating. The insert delivers a 4.88 mm cutting width and a maximum depth of cut of 2.75 mm, making it well suited for shallow to medium-depth grooving in a range of workpiece materials. The positive 27-degree rake angle reduces cutting forces and improves chip control. This insert is intended for use by machinists and tooling technicians in production turning environments.

The 5941099 is applied in external grooving operations where consistent groove width and surface finish are required. With a cutting width range of 4.88 mm and a maximum depth of cut range of 2.00 to 3.00 mm, it fits turning applications that demand close dimensional tolerances. The neutral hand orientation allows straightforward mounting in compatible EG-U toolholders. The AlTiN PVD coating supports performance in dry or semi-dry cutting conditions and provides elevated hardness at the cutting edge. Typical applications include part-off adjacent grooving, groove sizing for snap rings or O-rings, and general profile work on bar stock or chucked workpieces.

Key Features

• KCU25 solid carbide substrate with PVD AlTiN coating for elevated edge hardness and wear resistance
• 4.88 mm cutting width with a maximum depth of cut of 2.75 mm
• GUP chip breaker geometry with a positive 27-degree rake angle for reduced cutting forces
• Corner radius of 0.79 mm for controlled groove profile at the base
• Neutral hand orientation compatible with standard EG-U toolholder systems
• Part of the Beyond Evolution series, insert size 4, seat size 4

Compatibility

Designed for use with EG-U style grooving toolholders that accept insert size 4 and seat size 4 in the Beyond Evolution series. No additional specific model compatibility data was provided in the product input.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician with the machine spindle fully stopped and locked out per applicable machine safety procedures. Seat the insert firmly into the EG-U toolholder pocket and secure the clamping screw to the toolholder manufacturer's specified engagement before commencing cuts. Inspect the insert seat for debris or wear before each insert change to maintain accurate cutting geometry. Do not exceed the published maximum depth of cut for the insert grade and application to avoid premature edge failure.