WNMA080412-RK7 WKK10S WKK10S Wendeplatten - Walter Tools

Take advantage of the combination of high wear resistance, stable chip control and form-stable geometry for reliable cast-iron turning operations; order directly via Metav Werkzeuge or contact our consultants for application support.

WNMA080412-RK7 WKK10S – Turning insert, Trigon 80°, for cast iron | Walter Tools

The WNMA080412-RK7 WKK10S is a Trigon 80° turning insert engineered for efficient machining of cast iron, featuring a coated carbide grade from the Tiger·tec Silver series that balances wear resistance and toughness.

• Tiger·tec Silver coating for enhanced wear resistance
• Designed for abrasive cast iron machining (ISO K)
• Trigon 80° form with 1.2 mm corner radius
• Negative 0° relief and stable chip control RK7

Reliable grade and coating for abrasive cast-iron work

The Tiger·tec Silver series supplies a coated carbide grade tailored to the demands of cast iron machining. The WKK10S grade combines surface hardness and a supportive substrate to resist the abrasive wear typical of grey and ductile cast irons, while preserving edge integrity during interrupted cuts. This results in longer usable life of the cutting edge and consistent dimensional accuracy over extended production runs. The insert’s construction reduces the frequency of tool changes, improving cycle-time efficiency and contributing to steady process throughput.

Geometry and chip control that improve process stability

The insert’s Trigon 80° shape and RK7 chipbreaker are designed to generate short, controlled chips when turning cast iron, lowering the risk of chip entanglement and improving surface finish. The 1.2 mm corner radius supports robust edge strength at moderate depths of cut, while the negative 0° relief provides a stable cutting geometry under heavy interruptions and higher radial loads. Together these features offer a predictable, vibration-resistant behaviour that keeps tolerances consistent and minimises scrap in batch production.

Practical benefits for workshop productivity

With tolerance class M and a format geared to versatile turning applications, this indexable insert yields measurable productivity gains: fewer insert changes, reduced downtime and consistent component quality. The negative geometry supports higher feed rates where stability is essential, and the Tiger·tec Silver coating helps maintain edge condition across varied cast-iron grades. For production environments that prioritise throughput and repeatability, the insert provides a balance between wear resistance and economical performance.

Simple selection and integration into existing toolholders

The WNMA-format insert is compatible with standard holders that accept Trigon 80° inserts; selection is simplified by size and designation codes. The plate size and thickness follow familiar conventions, enabling quick matching to existing tool posts and reducing setup time. When combined with appropriate cutting parameters for cast iron—using the RK7 chipbreaker to encourage short chips—operators can expect reliable surface quality and predictable tool life without extensive trial-and-error.

For application-specific recommendations, tooling bundles or to discuss compatibility with current setups, contact Metav Werkzeuge for expert guidance and prompt delivery information.

Technical data

• SKU: WNMA080412-RK7-WKK10S-WALTER
• Label: Drehwendeschneidplatte WNMA080412-RK7 WKK10S Walter Tools
• Manufacturer: Walter Tools
• Series: Tiger-tec Silver
• Grade: WKK10S
• Designation: WNMA080412-RK7 WKK10S

Data

• Corner radius: 1.2 mm
• Relief angle: 0° (negative)
• Plate form: Trigon 80°
• Plate size: 08
• Thickness code: 04
• Tolerance class: M

Special features

• Coating: Tiger·tec Silver (coated carbide)
• Chipbreaker: RK7
• Application group: ISO K (cast iron)
• Geometry: negative
• Material base: coated hardmetal
• Suitable for interrupted cuts and abrasive materials

FAQ

What materials is this insert designed for?
The WNMA080412-RK7 WKK10S is optimised for cast iron (ISO K); the WKK10S grade and RK7 chipbreaker address abrasive wear and short, breaking chips typical of these materials.

How does the RK7 chipbreaker affect machining?
The RK7 chipbreaker on this insert promotes short, controlled chips and improved surface finish when turning cast iron, reducing chip handling issues in the machining zone.

Can the insert be used for heavy interrupted cuts?
Yes, the negative 0° relief and the 1.2 mm corner radius provide a robust cutting edge that supports heavier radial loads and interrupted cutting conditions.

Which holder types accept the Trigon 80° WNMA format?
Standard toolholders compatible with Trigon 80° WNMA inserts can be used; check the holder’s seat and clamping specifications to ensure secure fitment for optimal stability.

Is the Tiger·tec Silver coating beneficial for mixed production runs?
The Tiger·tec Silver coating offers a balance of wear resistance and toughness that performs well across many cast-iron grades, helping to maintain edge life even in variable-production scenarios.

Manufacturer/Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com

Walter Tools is a brand of Walter AG and forms part of the Sandvik Group. Protected trademarks and registered trade names belong to their respective owners. Walter Tools products described here are original, factory-new items from the manufacturer.