Kennametal 4111099 Cutoff Insert KCU25 Carbide 3mm

Product Description

The KENNAMETAL 4111099 is a carbide cutoff insert designed for parting and grooving operations on CNC lathes and turning centers. Carrying the manufacturer grade KCU25 with an AlTiN coating, it delivers heat and wear resistance suited to interrupted cuts and demanding workpiece materials rated under material grades C2 and C6. The insert features a 3.00 mm (0.1180 inch) cutting width, a neutral lead angle of 0 degrees, and a 2.00-degree relief angle with a 0.0080-inch corner radius. It belongs to Kennametal Series A2 and uses a CR chipbreaker geometry. Licensed machinists and CNC operators install this insert in compatible A2-style cutoff toolholders.

This insert is suited for cut-off applications in production turning environments, including both light-duty and medium-duty material removal. The KCU25 grade with AlTiN coating handles steel and cast iron workpieces where tool life and edge stability are priorities. The CR chipbreaker promotes chip control during parting, reducing the risk of chip jamming in deep cutoff operations. It is sold individually per package, with a minimum order quantity of 10 units, making it appropriate for shop restocking or tooling room inventory management.

Key Features

• Carbide substrate with AlTiN coating for elevated heat resistance during parting operations
• 3.00 mm (0.1180 inch) cutting width for precise parting and grooving
• Neutral lead angle (0 degrees) for balanced radial cutting forces
• CR chipbreaker geometry promotes controlled chip evacuation
• 2.00-degree relief angle with 0.0080-inch corner radius for clean edge engagement
• KCU25 manufacturer grade rated for C2 and C6 material applications

Compatibility

Designed for use in Series A2 cutoff and grooving toolholders that accept A2030N00CR02-style inserts. Verify toolholder pocket specifications against insert dimensions before installation.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist following the toolholder manufacturer torque and clamping guidelines. Power down and lock out the machine spindle before changing inserts. Inspect the toolholder pocket for debris, chips, or wear before seating the new insert. Do not exceed the toolholder manufacturer recommended depth of cut or feed rate for this insert style.