Kennametal 5941081 Cutoff Insert KCU25 Carbide 3mm

Product Description

The KENNAMETAL 5941081 is a carbide cutoff insert designed for precision parting and grooving operations on CNC lathes and turning centers. Manufactured to the EC-U insert style and sold under the Beyond Evolution series, this single-end insert features a 3.00 mm cutting width, a neutral lead angle, and a 2-degree relief angle. The AlTiN coating applied via PVD process improves heat resistance and tool life during high-speed cutoff work. The CR chipbreaker geometry promotes controlled chip evacuation, reducing the risk of chip packing in deep grooving or cutoff applications. Machinists and toolroom technicians working in production or job-shop environments will find this insert suited to steel, cast iron, and similar workpiece materials corresponding to material grades C2 and C6.

This insert is intended for cutoff and grooving toolholders that accept the EC-U insert style with a seat size of 3. It is appropriate for use in residential machine shops, production turning departments, and aerospace or general metalworking environments where consistent parting performance and close dimensional tolerances are required. The neutral hand orientation allows use in standard straight cutoff applications without directional bias.

Key Features

• 3.00 mm cutting width with neutral lead angle and neutral hand for standard cutoff setups
• AlTiN coating via PVD process for improved heat resistance and extended tool life
• CR chipbreaker geometry promotes positive chip control and evacuation
• 2-degree relief angle reduces rubbing on the cut face
• Single-end insert design; EC-U insert style, insert seat size 3
• Material grades C2 and C6 cover a broad range of ferrous and non-ferrous workpiece applications

Compatibility

Designed for use with EC-U style cutoff and grooving toolholders that accept insert seat size 3. Specific compatible toolholder model numbers were not provided in the available product data; verify seat style and size against your toolholder specifications before ordering.

Installation Notes

Insert seating and replacement should be performed by a qualified machinist or toolroom technician with the machine powered down and all axes at rest. Use the appropriate torque wrench and clamping screw specified by the toolholder manufacturer when securing the insert. Inspect the insert pocket and clamping mechanism for wear or debris before seating a new insert. Never exceed the cutting parameters recommended by KENNAMETAL for the KCU25 grade and the workpiece material in use.