TNMG220408-MK5 WKK10S WKK10S Wendeplatten - Walter Tools

Benefit from a highly wear-resistant grade and consistent chip control that boost machining stability and productivity when working with cast iron; order genuine inserts through Metav Werkzeuge or consult the technical team for application-specific advice.

TNMG220408-MK5 WKK10S – indexable turning insert, triangular 60°, for cast iron, Walter Tools

The TNMG220408-MK5 WKK10S is a triangular 60° indexable turning insert designed for efficient, stable machining of cast iron components with a Tiger·tec Silver coated carbide grade.

• Tiger·tec Silver coating for cast iron machining
• WKK10S coated carbide grade for abrasion resistance
• Triangular 60° geometry with 0.8 mm corner radius
• MK5 chipbreaker for predictable, short chips

Higher throughput thanks to stable cutting performance

The combination of the WKK10S carbide grade and the Tiger·tec Silver coating provides a significant improvement in resistance to abrasive wear, which directly supports longer tool life and fewer insert changes. In practice, this results in more consistent cycle times and reduced downtime for insert replacement. The 0° relief angle (negative) and robust cutting edge geometry minimise edge chipping under interrupted cuts often encountered with cast components, delivering reproducible results across production batches.

Reliable chip control and surface quality for cast iron

Equipped with the MK5 chipbreaker, the insert produces short, controlled chips that are easier to evacuate in turning operations, reducing the risk of re-cutting or surface marks. The grade and chipbreaker are tuned to the demands of the K material group, meaning this insert is optimised for the abrasive, often brittle nature of cast iron. As a result, workshops see improved surface finishes and lower scrap rates when replacing older, general-purpose grades with this targeted solution.

Practical economy through robust design and multiple edges

The triangular 60° insert form provides three usable cutting edges per indexable unit, improving cost-effectiveness per edge over single-edged solutions. The 0.8 mm corner radius supports stable tool entry and exit, helping to maintain dimensional accuracy on radiused profiles. Together, these features contribute to predictable tool behaviour and straightforward process planning in turning centres and CNC lathes where repeatability and uptime are priorities.

For application guidance or to source genuine Walter Tools TNMG220408-MK5 WKK10S inserts tailored to specific cast-iron operations, contact Metav Werkzeuge for prompt technical support at info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• SKU: TNMG220408-MK5-WKK10S-WALTER
• Label: Drehwendeschneidplatte TNMG220408-MK5 WKK10S Walter Tools
• Manufacturer: Walter Tools
• Product type: indexable turning insert
• Series: Tiger·tec Silver
• Grade: WKK10S

Facts

• Insert size: 22
• Thickness: 04
• Corner radius: 0.8 mm
• Insert shape: triangular 60°
• Relief angle: 0° (negative)
• Chipbreaker: MK5
• Tolerance class: M

Special features

• Coated carbide (Tiger·tec Silver technology)
• Optimised for cast iron (K)
• Stable cutting edge for interrupted cuts
• Suitable for abrasive wear conditions

FAQ

Which materials is this insert intended for?
The TNMG220408-MK5 WKK10S insert is optimised for cast iron applications; the WKK10S grade and Tiger·tec Silver coating address the abrasive wear typical of cast materials.

How does the MK5 chipbreaker affect machining?
The MK5 chipbreaker produces short, controlled chips that improve chip evacuation and reduce the likelihood of surface damage during turning operations with cast iron.

How many cutting edges are available per insert?
The triangular 60° form offers three usable cutting edges per insert, increasing the number of index positions and improving cost per cutting edge.

What advantages does the Tiger·tec Silver coating provide?
Tiger·tec Silver enhances abrasion resistance and maintains a stable cutting edge under the stresses of cast-iron machining, which supports longer tool life and consistent part quality.

Is this insert suitable for interrupted cuts?
Yes; the combination of a robust cutting edge geometry and the negative 0° relief angle gives improved resistance to chipping under interrupted cutting conditions.

Manufacturer: Walter Tools; The Walter AG, Tübingen; part of the Sandvik Group.
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