CCMT09T308-MW4 WKK20S Wendeplatten - Walter Tools

Take advantage of the combination of the Tiger·tec Silver grade and the MW4 chipbreaker to achieve consistent performance when machining abrasive cast iron; the rhombic 80° geometry and 0.8 mm corner radius balance cutting strength and surface finish. Order the CCMT09T308-MW4 WKK20S directly via Metav Werkzeuge or ask our consultants for application advice.

CCMT09T308-MW4 WKK20S — Turning insert, Tiger·tec Silver, for cast iron | Walter Tools

The CCMT09T308-MW4 WKK20S is a rhombic 80° turning insert with Tiger·tec Silver coating, optimised for productive cast iron machining and stable chip control.

• Rhombic 80° geometry for versatile turning
• Tiger·tec Silver coating for wear resistance
• MW4 chipbreaker tuned for cast iron
• 0.8 mm corner radius and 7° relief angle

Proven productivity for abrasive cast iron applications

The CCMT09T308-MW4 WKK20S combines a wear-focused grade with targeted chip control to deliver reliable throughput in cast iron production. The WKK20S grade, part of the Tiger·tec Silver series, is a coated carbide formulation engineered for abrasive wear and the short, frequently breaking chips typical of cast iron workpieces. This results in extended tool life and fewer interruptions for insert changes, supporting steady cycle times and predictable tooling costs. The insert designation and series information support efficient tool selection for workshops and production environments.

Geometry and edge design that support surface quality and process stability

The rhombic 80° shape and the specified 0.8 mm corner radius are chosen to balance edge strength and achievable surface finish on interrupted and continuous cuts. A 7° relief angle reduces flank rubbing and minimises heat transfer into the cutting edge, which helps maintain dimensional stability during longer cuts. The MW4 chipbreaker promotes controlled chip formation during cast iron turning, reducing the risk of tangles and improving swarf evacuation. These design elements together ensure consistent components and less rework in downstream operations.

Coating and grade features engineered for extended service life

The Tiger·tec Silver family provides a robust, versatile surface treatment for coated carbide inserts, enhancing abrasion resistance while preserving toughness for intermittent cutting. In the CCMT09T308-MW4 WKK20S the coating and carbide substrate are matched to the demands of cast iron, where abrasive constituents and fragmented chips accelerate wear. The result is a reproducible cutting edge and predictable tool-change intervals, which supports process planning and cost calculations. Users benefit from straightforward integration into existing tool holders and standard turning setups.

Contact Metav Werkzeuge for tailored recommendations on Walter Tools inserts and for information on availability and delivery to the local workshop — eMail: info@metav-werkzeuge.com • Tel: +49 2822 7131930

Technical data

• SKU: CCMT09T308-MW4-WKK20S-WALTER
• Designation: CCMT09T308-MW4
• ISO designation: CCMT09T308-MW4 WKK20S
• Brand: Walter Tools

Numbers / Core technical data

• Shape: Rhombus 80°
• Size: 09
• Thickness: T3
• Corner radius: 0.8 mm
• Relief angle: 7°
• Tolerance class: M

Designs / Special features

• Series: Tiger·tec Silver
• Grade: WKK20S
• Chipbreaker: MW4
• Material suitability: cast iron (K)
• Execution: T

FAQ

What materials is this insert specifically designed for?
The CCMT09T308-MW4 WKK20S is specifically engineered for machining cast iron, with the WKK20S grade and MW4 chipbreaker tuned to handle abrasive, short-chip conditions.

How does the Tiger·tec Silver series benefit production runs?
The Tiger·tec Silver coating on this Walter Tools insert enhances wear resistance, resulting in longer life and more predictable tool-change intervals during serial cast iron machining.

What advantages does the rhombic 80° geometry offer?
The rhombic 80° form provides versatility for a range of turning operations, combining access to different cutting directions with a robust cutting edge for interrupted or heavy cuts.

Is the MW4 chipbreaker suitable for both roughing and finishing?
The MW4 chipbreaker is optimised for controlled chip formation in cast iron; it performs particularly well in roughing and medium finishing where chip control is critical for process stability.

How does the 0.8 mm corner radius influence cutting performance?
A 0.8 mm corner radius improves edge strength and distributes cutting forces, which helps maintain surface quality and reduces the likelihood of premature edge failure on abrasive materials.

Manufacturer/Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen

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