CNMG120408-MK5 WKK10S Wendeplatten - Walter Tools

Take advantage of the WKK10S grade and Tiger·tec Silver technology for productive, wear-resistant turning of cast iron components; the robust geometry and MK5 chipbreaker promote stable chip formation and fewer tool changes. Order inserts directly via Metav Werkzeuge or consult their technical team for application support.

CNMG120408-MK5 WKK10S indexable turning insert, Tiger·tec Silver, for cast iron — Walter Tools

The CNMG120408-MK5 WKK10S is an indexable turning insert designed for productive machining of cast iron, combining a wear-resistant coating with a geometry tuned for stable, repeatable cutting.

• Tiger·tec Silver coating for wear resistance
• WKK10S grade optimised for cast iron
• MK5 chipbreaker for controlled chips
• Rhombic 80° form with 0° negative rake

Longer tool life through advanced coating and grade

The Tiger·tec Silver coating paired with the WKK10S grade delivers tangible gains in tool life and process economy. As a coated carbide solution, the combination resists abrasive wear commonly encountered when machining cast iron, which reduces the frequency of tool changes and downtime. For production environments this means fewer interruptions and a lower cost per component while maintaining consistent edge performance under abrasive conditions.

Reliable chip control and robust cutting geometry

The MK5 chipbreaker is designed for dependable chip formation when machining materials that produce short, breaking chips. The Rhombus 80° insert form and 0° (negative) rake create a stable cutting edge that withstands interrupted cuts and heavy engagement. The corner radius 0.8 mm helps balance strength and surface quality, improving process stability and reducing the risk of edge chipping in demanding operations.

Purpose-built for cast iron (ISO K) applications

This insert is tailored to the needs of casting materials: the grade addresses abrasive wear and frequent, brittle chip behaviour typical of cast iron, classified under ISO K. The combination of grade and geometry provides predictable cutting forces and stable chip formation, which supports repeatable component quality and simplifies parameter selection for machinists transitioning between similar cast iron jobs.

Practical use, tolerance and ordering guidance

With a tolerance class of M and a durable negative geometry, the insert suits a wide range of turning setups where robustness is prioritised. The MK5 chipbreaker and coating technology are optimised for production throughput rather than fine finishing; for high-precision finishing operations, select geometries and smaller corner radii accordingly. For any uncertainty about integration or cutting data, Metav Werkzeuge’s advisors can assist with process parameters and holder compatibility to ensure the insert meets specific shopfloor demands.

Contact Metav Werkzeuge for tailored application advice and to order CNMG120408-MK5 WKK10S inserts — phone +49 2822 7131930 or eMail info@metav-werkzeuge.com

Technical data

• Article number: CNMG120408-MK5-WKK10S-WALTER
• Designation: CNMG120408-MK5 WKK10S
• Product type: Indexable turning insert
• Series: Tiger·tec Silver
• Grade: WKK10S
• Manufacturer: Walter Tools
• Tolerance class: M
• Execution: G

Dimensions / core technical data

• Insert size: 12
• Thickness code: 04
• Corner radius: 0.8 mm
• Relief angle: 0° (negative)
• Insert form: Rhombus 80°

Special features and suitability

• Chipbreaker: MK5
• Coating/technology: Tiger·tec Silver (coated carbide)
• Material group suitability: cast iron (ISO K)
• Shape and geometry: negative geometry, robust edge

FAQ

Which materials is this insert optimised for?
The CNMG120408-MK5 WKK10S is optimised for cast iron (ISO K); the WKK10S grade and Tiger·tec Silver coating are tuned to resist abrasive wear and handle short, breaking chips typical of cast materials.

What advantage does the Tiger·tec Silver technology bring?
Tiger·tec Silver provides enhanced wear resistance and thermal stability for the coated carbide grade, extending tool life and maintaining cutting-edge integrity during prolonged turning of abrasive cast iron.

How does the MK5 chipbreaker affect machining?
The MK5 chipbreaker promotes reliable, short chip formation and consistent evacuation, supporting safer machining and fewer interruptions in production when using the insert in turning operations.

What does the 0° negative rake mean for cutting performance?
A 0° (negative) rake yields a stronger cutting edge suitable for interrupted cuts and heavy loading; it increases edge robustness at the expense of slightly higher cutting forces compared with positive-rake inserts.

Is this insert suitable for finishing operations?
The geometry and 0.8 mm corner radius favour general turning and semi-finish applications on cast iron; for high-precision finishing, consider inserts with finer radii and alternative geometries.

How to identify this SKU for ordering?
Order using SKU CNMG120408-MK5-WKK10S-WALTER. Walter Tools’ designation and the WKK10S grade indicate the coated carbide grade and suitability for cast iron.

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

Protected trademarks and trade names are the property of their respective owners. Brand names and protected trade names are mentioned for explanation only. There is no affiliation between our company and the mentioned brands. The offered article is original, factory-new goods from the manufacturer (Walter Tools).