Kennametal 5533523 Carbide Cutoff Insert 5mm Tiocn

Product Description

The KENNAMETAL 5533523 is a carbide cutoff insert designed for parting and grooving operations on CNC lathes and turning centers. It carries the EC-U insert style designation and runs in the Beyond Evolution series under the KCU25 manufacturer grade. A CVD-applied TiOCN coating provides wear resistance and thermal stability during high-speed cut-off work. The insert features a 5mm cutting width, a 0.012-inch corner radius, and a 2-degree relief angle. With a neutral lead angle and neutral hand, it suits a wide range of workholding setups without orientation-specific toolholders. Machinists and tool-room professionals select this insert for consistent parting performance on steel and similar ferrous materials.

This insert is intended for cut-off and parting applications in production turning environments, both job-shop and high-volume manufacturing. The CM chipbreaker geometry helps manage chip evacuation during deep parting passes. The single-end configuration means the cutting edge is on one end only. It fits toolholders sized for the EC-U style with a seat size of 5, making it appropriate for light to medium parting depths where dimensional accuracy and surface finish at the parting line are required.

Key Features

• KCU25 carbide grade with CVD TiOCN coating for wear and heat resistance
• 5mm cutting width suitable for standard parting and grooving operations
• CM chipbreaker geometry for controlled chip formation and evacuation
• Neutral lead angle and neutral hand for versatile toolholder compatibility
• 2-degree relief angle reduces rubbing and extends edge life
• Single-end insert — one active cutting edge per insert

Compatibility

Designed for use in EC-U style cutoff and parting toolholders with an insert seat size of 5, as part of the Kennametal Beyond Evolution series tooling system.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician with the machine powered off and all spindle motion fully stopped. Seat the insert firmly against the toolholder pocket faces before tightening the clamping screw — do not force or overtighten. Inspect the insert seat and clamping components for chips or debris before seating a new insert. Follow the toolholder manufacturer torque guidance for clamping hardware.