CNMA160616-RK5 WKK20S WKK20S Wendeplatten - Walter Tools

Take advantage of the high abrasion resistance and stable chip control of the Tiger·tec Silver grade together with a robust insert geometry for dependable, productive turning of cast-iron components; order the insert directly via Metav Werkzeuge or consult the sales team for application support.

CNMA160616-RK5 WKK20S turning indexable insert — Tiger·tec Silver by Walter Tools

CNMA160616-RK5 WKK20S is a rhombic 80° turning insert designed for productive machining of cast iron in industrial turning operations

• Tiger·tec Silver coated carbide grade WKK20S
• Designed for cast iron machining (ISO K)
• Rhombic 80° shape with 1.6 mm corner radius
• RK5 chipbreaker for controlled chip formation

Outstanding performance on abrasive cast-iron workpieces

The combination of Tiger·tec Silver coating and the WKK20S micrograin substrate delivers enhanced abrasion resistance and stable wear behaviour when machining cast iron. This grade is tailored to the short, brittle chips and abrasive nature typical of grey and nodular cast irons, enabling consistent cutting results and predictable tool life. The engineering of the coating reduces flank wear and maintains cutting-edge integrity over multiple passes, supporting uninterrupted production cycles and fewer tool changes.

Robust geometry for reliable cutting and edge security

A Rhombic 80° shape with a 1.6 mm corner radius and 0° (negative) free angle produces a particularly sturdy cutting edge that resists chipping under intermittent cuts and heavy interruptions. The RK5 chipbreaker is optimised to create short, easily evacuable chips, reducing the risk of built-up edge and improving surface finish on brittle materials. These geometric choices translate into lower scrap rates and improved process stability in turning operations where reproducible results matter.

Easy integration into standard CNMA holders and production lines

The insert follows the CNMA size coding and a thickness of 06, making it compatible with widely used CNMA toolholders for 16 mm style inserts. Constructed as a coated carbide indexable insert from the Tiger·tec Silver series, it supports repeatable clamping and quick index changes to keep machine downtime minimal. The combination of predictable edge behaviour and a dedicated chip control solution supports cycle-time reductions and higher overall throughput in batch and serial production.

Contact Metav Werkzeuge for tailored application advice or request the CNMA160616‑RK5 WKK20S turning insert by Walter Tools for productive cast-iron turning — eMail info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: CNMA160616-RK5-WKK20S-WALTER
• Product type: Drehwendeschneidplatte
• Manufacturer: Walter Tools

Facts

• Size: 16
• Thickness: 06
• Corner radius: 1.6 mm
• Free angle: 0° (negative)
• Tolerance class: M

Special features

• Series: Tiger·tec Silver
• Grade: WKK20S (coated carbide)
• Chipbreaker: RK5
• Shape: Rhombus 80°
• Suitable for: Cast iron (ISO K)
• Execution: A

FAQ

What materials is this insert designed for?
The CNMA160616-RK5 WKK20S insert from Walter Tools is specified for machining cast iron (ISO K) and is tuned for the abrasive wear and short-chip behaviour typical of those materials.

How does the RK5 chipbreaker affect machining?
The RK5 chipbreaker on this insert produces short, controlled chips suited to cast-iron turning, improving chip evacuation and surface integrity during interrupted or continuous cuts.

Which holder style fits this insert?
The insert follows the CNMA size code and a thickness of 06, so it is intended for standard CNMA-compatible turning toolholders designed for 16-sized inserts.

What benefit does the Tiger·tec Silver coating provide?
The Tiger·tec Silver coating increases abrasion resistance and extends edge life on abrasive materials, helping to maintain cutting performance and reduce flank wear over longer cutting times.

Is the insert suitable for heavy interrupted cuts?
Yes. The rhombic 80° geometry with a 1.6 mm corner radius and negative rake delivers a robust cutting edge that resists chipping, making it appropriate for demanding interrupted cutting situations.

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

Protected trademarks and trade names remain the property of their respective owners. Brand names and protected trade names are mentioned for explanatory purposes only. There is no affiliation between our company and the named brands. The offered item is an original, brand-new product from the manufacturer.