CCGT09T308-MK4 WKK20S Wendeplatten - Walter Tools

Take advantage of a high-performance insert that combines the Tiger·tec Silver coating and the wear-resistant WKK20S grade to deliver stable chip formation and long tool life in cast-iron operations; order directly from Metav Werkzeuge or consult their specialists for tailored recommendations.

CCGT09T308-MK4 WKK20S — Turning/drilling indexable insert for cast iron (Tiger·tec Silver) by Walter Tools

A CCGT09T308-MK4 WKK20S indexable insert designed for productive machining of cast iron, offering reliable chip control and extended service life.

• Tiger·tec Silver coating for high wear resistance
• Optimised for cast iron machining (ISO K)
• Rhombic 80° shape with 0.8 mm corner radius
• MK4 chipbreaker for stable chip control
• 7° relief angle, plate thickness T3

Increased productivity through optimised coating and grade

The combination of the Tiger·tec Silver coating and the WKK20S grade provides pronounced wear resistance and consistent edge behaviour when machining abrasive cast-iron materials. Because the grade is tuned to the demands of ISO K workpieces, the insert maintains cutting performance under interrupted cuts and variable chip loads, which leads to reduced tool changes and higher uptime. The result is measurable productivity gains and predictable tool-life cycles in series turning and drilling operations.

Reliable cutting geometry for stable machining

The Rhombic 80° geometry with a 0.8 mm corner radius and a 7° relief angle creates a balanced edge that resists chipping while ensuring good engagement in turning and reaming tasks. The moderate corner radius supports surface quality without overstressing the tool, and the T3 plate thickness contributes to mechanical stability under radial and axial loads. Together these features enable stable cutting and improved surface finishing in demanding cast-iron applications.

Consistent chip control and application scope

The MK4 chipbreaker is engineered for controlled breakage of short, brittle chips typical of cast iron, reducing the risk of recoiling and ensuring secure evacuation. This insert is specifically prepared for ISO K materials and is therefore particularly suitable for machining grey and nodular cast iron. When paired with appropriate cutting data and a matching toolholder, the insert supports repeatable process results and lower scrap rates through predictable chip behaviour and edge resilience.

Practical selection and integration advice

For selection, pair this insert with a rigid toolholder and conservative feed-start parameters to validate process windows; increases in feed or speed can then be introduced stepwise. The insert’s specifications favour shop-floor scenarios where abrasive wear and intermittent cuts are common. If process optimisation or cutting data are required, Metav Werkzeuge’s technical team can advise on feed/speed recommendations and compatible toolholder solutions to achieve maximum efficiency.

Contact Metav Werkzeuge for a tailored supply of Walter Tools CCGT09T308-MK4 WKK20S inserts for cast-iron machining and for expert cutting-parameter support: eMail: info@metav-werkzeuge.com · Tel: +49 2822 7131930

Technical data

• SKU: CCGT09T308-MK4-WKK20S-WALTER
• Designation: CCGT09T308-MK4 WKK20S
• Product type: Bohr-/Aufbohrwendeschneidplatte / Drehwendeschneidplatte
• Manufacturer: Walter Tools

Facts

• Relief angle: 7°
• Corner radius: 0.8 mm
• Plate size: 09
• Plate thickness: T3
• Tolerance class: G

Special features

• Series: Tiger·tec Silver
• Grade: WKK20S
• Chipbreaker: MK4
• Shape: Rhombic 80°
• Suitable for: Cast iron (ISO K)
• Coating: coated carbide (as per series description)

FAQ

What materials is this insert intended for?
This insert is optimised for cast iron work (ISO K); the WKK20S grade and Tiger·tec Silver coating are tuned for abrasive, brittle-chip behaviour typical of cast-iron machining.

How does the MK4 chipbreaker benefit the machining process?
The MK4 chipbreaker on the CCGT09T308-MK4 WKK20S promotes controlled chip formation and easy evacuation, reducing interruptions and improving process stability during turning and drilling of cast iron.

Which geometry advantages does the Rhombic 80° bring?
The Rhombic 80° form, combined with a 0.8 mm corner radius and 7° relief, provides a robust edge for interrupted cuts while maintaining surface quality and reducing corner chipping.

Is this insert compatible with standard toolholders?
The insert follows common indexable-insert dimensions and fits holders designed for the CCGT09T308-MK4 family; compatibility with specific holders should be checked against holder specifications and clamping features.

Can this insert be used for continuous high-speed cutting?
The Tiger·tec Silver coating and grade WKK20S enhance wear resistance, but cutting parameters should be adjusted to the workpiece and machine capabilities; refer to recommended ranges or consult Metav Werkzeuge for process tuning.

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

Protected trademarks and trade names are the property of their respective owners. Brand names are mentioned for explanatory purposes only; there is no affiliation between our company and the listed brands. The offered item is an original, factory-new product of the manufacturer Walter Tools.