CNMA160616-RK7 WKK10S WKK10S Wendeplatten - Walter Tools

Take advantage of the combination of high wear resistance, stable chip control and robust geometry for reliable cast-iron turning. The coated carbide grade and RK7 chipbreaker support extended tool life and consistent surface quality. Order the insert directly via Metav Werkzeuge or ask the consultants for application advice.

CNMA160616-RK7 WKK10S — Indexable turning insert with Tiger·tec Silver for cast iron

The CNMA160616-RK7 WKK10S is a negative-rake, rhombic 80° turning insert optimised for machining cast iron in production and workshop environments

• Tiger·tec Silver coating for high wear resistance
• Designed for cast iron (ISO group K) machining
• Rhombic 80° shape for versatile turning
• 1.6 mm corner radius and 0° (negative) relief angle

Improved process stability and longer tool life

The Tiger·tec Silver coating combined with the WKK10S grade offers a balance of abrasion resistance and toughness tailored for abrasive cast-iron materials. This coating technology enhances flank and crater wear behaviour, so the insert maintains cutting geometry for longer periods under cyclic loads. The integrated RK7 chipbreaker controls brittle, short chips typically produced when turning grey and nodular cast iron, reducing the risk of built-up edge and interrupted cutting. As a result, cycle times are stabilised and tool-change intervals are extended, supporting predictable production throughput and lower tooling costs per part.

Secure clamping and reliable cutting performance

The Rhombic 80° geometry with a 1.6 mm corner radius provides a favourable combination of edge strength and accessibility for a wide range of turning operations. The 0° (negative) relief angle increases insert robustness in heavy‑cut or interrupted machining, improving resistance to impact and edge chipping. The insert’s nominal size and thickness ensure compatibility with standard toolholders designed for this insert family, while the tolerance class M supports repeatable seating and concentricity. Together these geometric properties translate into fewer rework cycles and more consistent dimensional results on cast-iron components.

Practical benefits for production and workshop use

Engineers and machinists benefit from the insert’s focus on cast-iron applications: predictable chip formation, elevated wear resistance thanks to coated carbide, and simplified process setting. The chipbreaker design reduces manual chip handling and assists coolant penetration at the cutting edge, contributing to improved surface finish and reduced cycle interruptions. For users seeking process reliability, this insert represents a targeted solution where material abrasiveness and short, breaking chips are dominant concerns. For additional data such as cutting parameters or holder compatibility, Metav Werkzeuge can provide tailored recommendations to match specific machines and workpiece requirements.

For reliable cast-iron turning with Walter Tools’ Tiger·tec Silver grade, contact Metav Werkzeuge for availability and application guidance via info@metav-werkzeuge.com or call +49 2822 7131930.

Technical Data

• Article number: CNMA160616-RK7-WKK10S-WALTER
• Product type: Indexable turning insert
• Manufacturer: Walter Tools
• Series: Tiger·tec Silver
• Grade: WKK10S

Numbers / Core Technical Data

• Insert size: 16
• Thickness: 06
• Corner radius: 1.6 mm
• Relief angle: 0° (negative)
• Shape: Rhombic 80°
• Tolerance class: M

Special features / Versions

• Chipbreaker: RK7
• Coating: Tiger·tec Silver (coated carbide)
• Material application: cast iron (ISO group K)
• Execution: A
• ISO designation: CNMA160616-RK7 WKK10S

FAQ

What materials is this insert intended for?
The CNMA160616-RK7 WKK10S insert from Walter Tools is designed primarily for machining cast iron (ISO group K), with the grade and chipbreaker tuned for abrasive, short‑breaking chips.

How does the RK7 chipbreaker affect chip control?
The RK7 chipbreaker on this turning insert shapes and breaks brittle chips typical of cast‑iron turning, improving evacuation and reducing the likelihood of chip entanglement during continuous or interrupted cuts.

Is the insert suitable for heavy interrupted cuts?
Yes. The rhombic 80° geometry combined with a 0° (negative) relief angle and a 1.6 mm corner radius provides increased edge strength, making the insert robust in heavy or interrupted machining scenarios.

Which toolholders are compatible with this insert?
Standard toolholders for the CNMA‑style inserts will accept the CNMA160616‑RK7 WKK10S; Metav Werkzeuge can advise on specific holder models and clamping recommendations for the required setup.

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

Protected trademarks and trade names are the property of their respective owners. Brand names and protected trade names are mentioned solely for explanatory purposes. There is no connection between our company and the named brands. The offered item is original, factory‑new goods of the manufacturer.