Kennametal 4113712 Cutoff Insert KCU25 Carbide 1.99mm

Product Description

The KENNAMETAL 4113712 is a carbide cutoff insert designed for parting and grooving operations on CNC lathes and turning centers. It features a 1.99 mm cutting width, a 6-degree right-hand lead angle, and a CF chipbreaker geometry suited for controlled chip flow in interrupted or continuous cuts. The insert carries a KCU25 manufacturer grade with an AlTiN coating applied via PVD process, providing thermal resistance and edge wear performance in steel and cast iron applications. Double-end construction extends usable tool life per insert. Machinists and tool crib personnel working in production turning environments will recognize the A4 series form factor.

This insert is used in production turning applications where precise parting, grooving, or cutoff operations are required. The right-hand lead angle configuration suits standard spindle rotation on conventional lathe setups. The CF chipbreaker is optimized for finishing to medium-duty cuts. The clamp-style insert holding method is consistent with A4 series toolholders used on manual and CNC turning equipment in both job shop and high-volume production environments.

Key Features

• 1.99 mm cutting width for precise parting and grooving operations
• KCU25 grade with AlTiN PVD coating for extended wear resistance
• CF chipbreaker geometry for controlled chip evacuation
• 6-degree right-hand lead angle for standard lathe orientation
• Double-end insert design for increased inserts per cutting edge
• 2-degree relief angle with 0.0079 inch corner radius for clean finish geometry

Compatibility

Designed for use with A4 series clamp-style cutoff and grooving toolholders. Insert seat size 2 applies. Confirm toolholder compatibility with the A4C insert style designation before installation.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine before seating or removing inserts. Use the appropriate torx or clamp screw driver as specified by the toolholder manufacturer — do not over-torque the clamp. Inspect the insert pocket and clamping components for wear or debris before seating a new insert.