Kennametal 5941082 Cutoff Insert KCU25 Carbide 4mm

Product Description

The KENNAMETAL 5941082 is a single-end carbide cutoff insert designed for parting and grooving operations on CNC lathes and turning centers. Manufactured under the Beyond Evolution series, it carries the grade designation KCU25 with an AlTiN coating applied via PVD process, providing wear resistance and thermal stability at elevated cutting speeds. The insert features a 4 mm cutting width, a neutral lead angle, and a 2-degree relief angle with a CR chipbreaker geometry. It is intended for machinists, tool-and-die shops, and production turning operations requiring consistent cutoff performance in steel, cast iron, and similar workpiece materials.

This insert is suited for light to medium-duty cutoff and grooving applications in both production and job-shop environments. The EC-U insert style and size code 4 designation correspond to compatible toolholders designed for that seat geometry. The neutral hand orientation and CR chipbreaker make it appropriate for straight cutoff passes where chip control and surface finish at the parting face are priorities. It is sold individually with a minimum order quantity of 10 units.

Key Features

• KCU25 carbide grade with AlTiN PVD coating for extended tool life
• 4 mm cutting width (0.1575 inches) for standard parting applications
• CR chipbreaker geometry for controlled chip formation during cutoff
• Neutral lead angle and neutral hand for straightforward radial cutoff passes
• 2-degree relief angle reduces rubbing and flank wear
• Single-end insert maximizing edge geometry precision

Compatibility

Designed as an OEM-style replacement cutoff insert for EC-U style toolholders with an insert seat size 4, consistent with the Beyond Evolution series toolholder system.

Installation Notes

Cutoff inserts of this type are installed and replaced by machinists or tooling technicians on CNC or manual turning equipment. Always index or replace inserts with the machine powered down and the spindle fully stopped. Use the appropriate torque wrench and insert-seating tool specified by the toolholder manufacturer to avoid seat damage. Inspect the insert pocket and clamping screw condition before seating a new insert.