CNMG120408-MW5 WKK20S WKK20S Wendeplatten - Walter Tools

Benefit from the Tiger·tec Silver coating combined with the WKK20S grade and the MW5 chipbreaker for stable, productive machining of cast iron; order directly via Metav Werkzeuge or consult our specialists for application guidance.

CNMG120408-MW5 WKK20S indexable turning insert (for cast iron) – Walter Tools

CNMG120408-MW5 WKK20S is an indexable turning insert designed for reliable finishing and medium-duty machining of cast iron components

• Tiger·tec Silver coating for wear resistance
• Optimised for cast iron (ISO K) machining
• Rhombic 80° geometry for flexible turning
• 0.8 mm corner radius for consistent edge strength

Productivity through coating and chip control

The combination of the Tiger·tec Silver coating and the WKK20S grade yields a tool chemistry optimised for the abrasive wear typical of cast iron. This results in improved tool life and consistent process stability, which supports higher uptime in serial production. The MW5 chipbreaker is designed to produce short, controlled chips when machining grey and nodular cast irons, reducing interruptions and facilitating safe swarf handling. These technical choices translate directly into fewer tool changes and smoother production runs.

Geometry that increases versatility and reduces setup time

The rhombic 80° insert form with a 0.8 mm corner radius provides a flexible cutting edge suitable for a range of turning tasks, from light profiling to more robust finishing cuts. The negative 0° rake characteristic enhances edge strength when encountering interrupted cuts or hard inclusions in cast materials. Together, these features simplify tooling decisions on the shop floor: one insert style covers multiple turning operations, reducing inventory complexity and set-up adjustments.

Ease of integration and predictable performance

This insert is supplied in the industry-standard CNMG format and is readily compatible with common clamping systems for indexable turning tools, enabling quick replacement and repeatable seating. The coated carbide substrate and chipbreaker geometry were chosen to balance wear resistance with reliable chip formation on ISO K materials, delivering consistent surface quality and repeatable dimensional outcome across batches. For manufacturers seeking dependable inserts for cast iron, this configuration offers a pragmatic blend of durability and process reliability.

Contact Metav Werkzeuge for application advice on Walter Tools CNMG120408-MW5 WKK20S and to request cutting-parameter recommendations by phone or email

Technical Data

• Article number: CNMG120408-MW5-WKK20S-WALTER
• Designation: CNMG120408-MW5 WKK20S
• Manufacturer: Walter Tools
• Series: Tiger·tec Silver

Facts

• Plate size: 12
• Thickness: 04
• Corner radius: 0.8 mm
• Relief angle: 0° (negative)
• Tolerance class: M

Special features

• Coating: Tiger·tec Silver
• Grade: WKK20S (coated carbide)
• Geometry: Rhombic 80°
• Chipbreaker: MW5
• Execution: G
• Application: Cast iron (ISO K)

FAQ

What materials is this insert intended for?
The CNMG120408-MW5 WKK20S indexable turning insert by Walter Tools is formulated primarily for cast iron (ISO K) machining.

How does the Tiger·tec Silver coating help in production?
The Tiger·tec Silver coating on this Walter Tools insert improves wear resistance and supports longer tool life when turning abrasive cast iron materials.

Is the MW5 chipbreaker suitable for interrupted cuts?
Yes, the MW5 chipbreaker promotes short, controllable chips and the insert’s negative relief angle increases edge robustness for interrupted cutting situations.

Can this insert be used for finishing and profiling operations?
The rhombic 80° geometry and 0.8 mm corner radius permit versatile use across finishing and light profiling tasks while maintaining surface quality.

Which clamping systems are compatible with CNMG inserts?
The CNMG format of this Walter Tools insert is compatible with standard indexable turning holders designed for CNMG-style inserts; specific holder selection depends on the machine and application.

Manufacturer: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen; Germany; info@walter.com

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