Kennametal 6442482 Carbide Cutoff Insert 3mm KCU25

Product Description

The KENNAMETAL 6442482 is a solid carbide cutoff and grooving insert engineered for precision parting operations on CNC lathes and turning centers. Designated as style EC with a KCU25 manufacturer grade, this insert features a 3mm cutting width and a 2-degree relief angle, making it well suited for consistent, repeatable groove depths. The Al2O3 coating is applied via PVD process, providing a hard, wear-resistant surface layer that extends tool life in demanding cut-off applications. With an overall length of 9.48mm and a cutting height of 4.00mm, the insert seats in compatible EC-series toolholders. Machining professionals and CNC setup technicians will find this insert appropriate for production-volume parting work.

This insert is designed for right-hand lead angle applications, with a 6-degree right-hand lead angle and CF chipbreaker geometry. It is part of the Beyond Evolution series, which targets consistent chip control and edge stability during cutoff and grooving operations. Typical installations include production turning on bar stock, shaft components, and similar cylindrical workpieces where clean parting cuts are required. The CF chipbreaker geometry assists in managing chip flow in both light and moderate feed-rate scenarios.

Key Features

• Solid carbide construction with PVD-applied Al2O3 coating for extended wear resistance
• 3mm cutting width for consistent groove and parting dimensions
• 6-degree right-hand lead angle with right-hand insert orientation
• CF chipbreaker geometry for controlled chip formation during grooving and cutoff
• EC insert style, insert seat size 3, compatible with matching EC-series toolholders
• Part of the Beyond Evolution series for stable performance in production turning

Compatibility

Designed for use with EC-style insert seat size 3 toolholders. Specific holder compatibility should be verified against the Beyond Evolution EC series toolholder lineup using insert style EC and seat size 3 as selection criteria.

Installation Notes

Installation should be performed by a qualified CNC machinist or tooling technician. Power down and lock out the machine spindle before seating or replacing inserts. Use the appropriate torx or hex key as specified by the toolholder manufacturer to achieve proper clamping torque — do not overtighten or substitute fasteners. Inspect the insert pocket for debris or damage before seating the new insert to ensure full, even contact.