Kennametal 4114283 Cutoff Insert KCU25 Carbide 1.99mm

Product Description

The KENNAMETAL 4114283 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 applied via PVD process, this double-end insert delivers a cutting width of 1.99 mm (0.0783 inches) and an overall length of 20.03 mm (0.7886 inches). The A4 series design uses a clamp holding method for secure, repeatable positioning under high cutting forces. A 10-degree right-hand lead angle and a 2-degree relief angle suit standard cutoff applications where controlled chip flow and tool life are priorities.

This insert is intended for metalworking applications in production and job-shop environments where consistent parting performance is required. It fits A4 series cutoff toolholders and is installed by machinists and CNC tooling technicians on turning equipment handling steel, cast iron, and similar workpiece materials covered by C2 and C6 material grades. The CF chipbreaker geometry promotes chip control during deep cutoff passes. The double-end configuration allows two usable cutting edges per insert, extending service intervals between changeovers.

Key Features

• AlTiN coating via PVD process for wear resistance and thermal stability
• 1.99 mm cutting width with double-end configuration for two usable edges
• 10-degree right-hand lead angle with CF chipbreaker geometry for controlled chip evacuation
• 2-degree relief angle and 0.0080-inch corner radius for precise parting profiles
• Clamp insert holding method for secure seating in A4 series toolholders
• Cutting height of 4.09 mm (0.1610 inches) to suit standard A4 insert seats

Compatibility

Designed as an OEM-style replacement insert for A4 series cutoff and grooving toolholders accepting insert seat size 2. Compatible with tooling systems specifying insert style A4C and insert size code 0205.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before changing inserts. Use the appropriate torque wrench and clamp hardware specified for the A4 series toolholder to avoid insert seat damage. Inspect the insert pocket and clamp for wear or debris before seating the new insert.