CNMA160616-RK5 WKK10S WKK10S Wendeplatten - Walter Tools

Take advantage of the combination of proven chip control, abrasion-resistant Tiger‑tec Silver grade and a robust RK5 chipbreaker for reliable cast-iron turning and predictable tool life; order the insert directly via Metav Werkzeuge or consult our technical team for application advice.

CNMA160616-RK5 WKK10S — Indexable turning insert for cast iron machining (Walter Tools)

The CNMA160616-RK5 WKK10S is an indexable turning insert engineered for efficient machining of cast iron, offering stable chip control and high process reliability.

• Tiger‑tec Silver coating for wear resistance
• Optimised for cast iron (ISO group K)
• RK5 chipbreaker for short, controlled chips
• Rhombic 80° geometry with 1.6 mm corner radius

Predictable chip control and process efficiency

The insert uses the RK5 chipbreaker, designed to break the frequently short, brittle chips produced when machining cast iron, so interruptions and secondary operations are reduced. The combination of the chipbreaker geometry and the Tiger‑tec Silver coated grade WKK10S delivers consistent chip form across varying depths of cut. For production environments that prioritise uptime and stable cycles, this results in fewer stoppages and more predictable cycle times, improving overall machining throughput.

Durable grade and stable cutting edge for longer runtimes

Manufactured in a coated carbide grade from the Tiger‑tec Silver family, the cutting material provides enhanced resistance to abrasive wear typical of grey and nodular cast irons. The WKK10S grade balances hardness and toughness to extend edge life while maintaining dimensional stability. The insert’s negative clearance (0°) and rhombic 80° shape contribute to a secure edge engagement and reduced vibration, supporting repeatable surface quality and lower rework rates for precision turning tasks.

Practical application guidance and toolholder compatibility

The CNMA160616-RK5 WKK10S insert is offered in a standard 16 size with thickness code 06 and a 1.6 mm corner radius, making it suitable for general to heavy-duty facing and turning operations on cast-iron components. Use toolholders that accept CNMA-style rhombic inserts and select cutting parameters matched to the workpiece grade: moderate feeds and speeds to leverage the coating’s wear resistance and to maintain the insert’s stable cutting edge. For optimised set-ups, assess depth of cut and coolant strategy to achieve the best balance between tool life and productivity.

Discuss machining options with Metav Werkzeuge for Walter Tools Tiger‑tec Silver inserts — contact our specialists at info@metav-werkzeuge.com or call +49 2822 7131930 for tailored recommendations.

Technical data

• Article number: CNMA160616-RK5-WKK10S-WALTER
• Designation: CNMA160616-RK5 WKK10S
• Brand: Walter Tools
• Product type: Indexable turning insert

Facts

• Plate size: 16 mm
• Plate thickness code: 06
• Corner radius: 1.6 mm
• Clearance angle: 0° (negative)
• Tolerance class: M
• Plate form: Rhombus 80°

Special features

• Series: Tiger‑tec Silver
• Grade: WKK10S (coated carbide)
• Chipbreaker: RK5
• Material application: Cast iron (ISO group K)
• Execution: A

FAQ

What materials is this insert intended for?
The CNMA160616-RK5 WKK10S insert from Walter Tools is specifically optimised for machining cast iron (ISO group K) and performs reliably under the abrasive conditions typical for these materials.

Which chipbreaker does the insert feature and why is it important?
This insert is equipped with the RK5 chipbreaker; RK5 produces short, controlled chips that reduce the risk of entanglement and facilitate uninterrupted production when turning cast-iron components.

How does the Tiger‑tec Silver grade benefit production?
The Tiger‑tec Silver coating used in the WKK10S grade improves wear resistance against abrasive cast-iron chips, extending tool life and supporting consistent surface finish in repetitive turning operations.

Is the geometry suitable for heavy cuts or finishing passes?
The rhombic 80° geometry with a 1.6 mm corner radius provides a balance between strength for heavier cuts and a defined edge for finishing, allowing flexible use across roughing and finishing cycles.

How to identify the correct toolholder for this insert?
Select holders compatible with CNMA-format rhombic inserts; the CNMA160616-RK5 WKK10S fits standard CNMA toolholders designed for negative-insert clamping and the stated plate dimensions.

Manufacturer: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen; Germany

The Walter AG (marketed as Walter Tools) is one of the world’s leading manufacturers of precision tools for metalworking. Protected trademarks and trade names are the property of their respective owners. Brand names and registered trademarks are mentioned for explanation only. There is no affiliation between our company and the brands named. The offered item is an original, factory-new product of the manufacturer.