CNMA120412-RK7 WKK10S WKK10S Wendeplatten - Walter Tools

Take advantage of the combination of high wear resistance and reliable chip control for steady, productive machining of cast iron. Order the insert directly via Metav Werkzeuge or contact the consultants for specification support and delivery options.

CNMA120412-RK7 WKK10S — Indexable turning insert, Tiger·tec Silver for cast iron (Walter Tools)

The CNMA120412-RK7 WKK10S is a rhombic 80° indexable turning insert designed for productive machining of cast iron with a Tiger·tec Silver coated carbide grade

• Tiger·tec Silver coated carbide
• Optimised for cast iron applications
• RK7 chipbreaker for reliable chip control
• Rhombic 80° form with 1.2 mm corner radius

Improved process security and extended edge life

The Tiger·tec Silver coating on this coated carbide grade combines abrasion resistance with thermal stability to deliver consistent tool life when machining abrasive cast iron grades. The RK7 chipbreaker is designed to produce short, controllable chips in typical grey and nodular cast irons, reducing the risk of chip entanglement and downtime. A negative 0° rake angle increases edge robustness in heavy or interrupted cuts, supporting steady cutting forces and predictable wear behaviour, which benefits batch production and machining centres.

Geometry that balances strength and surface quality

The rhombic 80° insert shape provides an advantageous combination of cutting edge strength and approach angle, while the corner radius 1.2 mm gives improved edge stability for robust turning operations and repeatable surface finish. The overall geometry helps maintain dimensional accuracy across long tool runs, so operators achieve a consistent finish without frequent intervention. The tolerance class M and execution A ensure reliable seating and repeatability in common toolholders used in turning applications.

Economical performance with a reputable brand standard

As part of Walter Tools’ Tiger·tec Silver family, the WKK10S grade is engineered for efficient machining of cast iron, offering cost-effective wear resistance and a balanced performance profile across varied cast-iron components. The insert’s design supports shorter machine downtimes and fewer tool changes, which translates into lower overall production costs and stable output quality. For demanding series production where reproducible results matter, the CNMA120412-RK7 WKK10S delivers dependable performance under consistent operating conditions.

Contact Metav Werkzeuge for application advice on Walter Tools Tiger·tec Silver inserts and to request batch availability or specific cutting data for the CNMA120412-RK7 WKK10S — phone +49 2822 7131930 or eMail info@metav-werkzeuge.com

Technical data

• SKU: CNMA120412-RK7-WKK10S-WALTER
• Designation: CNMA120412-RK7 WKK10S
• Product type: Indexable turning insert
• Series: Tiger·tec Silver
• Grade: WKK10S

Core specifications

• Inscribed circle / size: 12 mm
• Corner radius: 1.2 mm
• Thickness code: 04
• Rake angle: 0° (negative)
• Insert form: Rhombic 80°
• Tolerance class: M

Materials and features

• Coating: Tiger·tec Silver (coated carbide)
• Chipbreaker: RK7
• Suitable for: cast iron
• Execution: A
• Manufacturer: Walter Tools

FAQ

What materials is this insert intended for?
The CNMA120412-RK7 WKK10S is specified for machining cast iron, with the WKK10S grade optimised for abrasive cast materials and short, breaking chips.

How does the RK7 chipbreaker affect machining?
The RK7 chipbreaker produces short, controllable chips in cast iron, improving chip evacuation and reducing the likelihood of chip-related interruptions when using the CNMA120412-RK7 WKK10S.

Is the insert suitable for interrupted cuts or heavy engagement?
The negative 0° rake angle and robust corner radius make the insert suitable for heavier engagement and interrupted cutting conditions typical in cast-iron work.

What performance benefits does the Tiger·tec Silver coating provide?
The Tiger·tec Silver coating increases abrasion resistance and thermal stability, extending edge life and supporting consistent dimensional results during longer production runs.

How should the item be specified when ordering?
Order using the SKU CNMA120412-RK7-WKK10S-WALTER or the designation CNMA120412-RK7 WKK10S and state the Tiger·tec Silver grade and RK7 chipbreaker for clarity.

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 designations are mentioned solely for explanation. There is no connection between our company and the named brands. The offered article is original, factory-new goods of the manufacturer.