CNMA120412-RK5 WKK10S WKK10S Wendeplatten - Walter Tools

Take advantage of the combination of high wear resistance from the Tiger·tec Silver coating, a stable RK5 chipbreaker for controlled chip formation and the rhombic 80° geometry for robust turning in cast iron; order the insert directly via Metav Werkzeuge or consult the technical team for application support.

CNMA120412-RK5 WKK10S indexable turning insert for cast iron, Tiger·tec Silver (Walter Tools)

The CNMA120412-RK5 WKK10S is a rhombic 80° indexable turning insert engineered for productive, abrasion-resistant machining of cast iron components.

• Tiger·tec Silver coating for increased wear resistance
• RK5 chipbreaker for stable chip formation
• Rhombic 80° geometry for robust cutting forces
• 0° negative clearance for secure seating

Optimised performance for abrasive cast iron machining

The Tiger·tec Silver series and the WKK10S grade combine as a coated carbide solution specifically tuned for cast iron (material group K). This composition is designed to resist the abrasive wear typical of grey and nodular cast irons, translating into longer cutting intervals and fewer tool changes, which supports higher machine utilisation. The rhombic 80° shape provides a stable cutting footprint, helping to maintain dimensional accuracy under interrupted cuts and varying feeds. By choosing a coating and grade matched to the application, process planners obtain predictable wear behaviour and reduced scrap rates.

Predictable chip control and secure edge life

The RK5 chipbreaker is engineered to produce short, manageable chips when turning cast iron, reducing the risk of chip entanglement and protecting both the workpiece and the machine. Combined with a corner radius of 1.2 mm and a 0° (negative) clearance, the insert offers a robust cutting edge that tolerates shock loads and provides consistent surface finishes. For workshops seeking repeatable results, the combination of geometry and chip control supports stable tool life and fewer stoppages, enhancing throughput without sacrificing component quality.

Practical integration into production processes

Designed for conventional clamping systems used with indexable turning inserts, this item fits typical toolholders that accept the CNMA form and size. The insert’s series characteristics mean it is suitable for machining tasks where abrasive wear dominates the failure mode. Process engineers will value the clear assignment to material group K and the machining envelope that this implies, allowing straightforward selection for cast-iron turning operations. When combined with appropriate cutting data and coolant strategies, the insert contributes to efficient cycle times and a reliable surface integrity.

Why the choice supports productivity and safety

Selecting a grade and coating from a recognised series reduces process variability: the Walter Tools Tiger·tec Silver family delivers a proven balance between wear resistance and toughness for cast iron applications. The robust geometry reduces the likelihood of unexpected edge breakage, supporting safer operating conditions and predictable maintenance intervals. For manufacturers aiming to raise productivity while keeping operation effort low, this insert offers a practical, technically justified option.

Contact Metav Werkzeuge for tailored recommendations on tooling setups and to confirm suitability for specific cast iron alloys and machining conditions

Technical data

• Article number: CNMA120412-RK5-WKK10S-WALTER
• Product type: Indexable turning insert
• Designation: CNMA120412-RK5 WKK10S
• Grade/Sort: WKK10S
• Series: Tiger·tec Silver

Facts

• Plate shape: Rhombus 80°
• Corner radius: 1.2 mm
• Relief/clearance angle: 0° (negative)
• Plate size: 12
• Plate thickness: 04
• Chipbreaker: RK5
• Tolerance class: M
• Execution: A
• Material group suitability: Cast iron (K)
• SKU: CNMA120412-RK5-WKK10S-WALTER

Special features

• Coated carbide grade tuned for abrasive wear
• Designed for stable chip formation in cast iron
• Robust edge geometry for interrupted cuts
• Series description: WKK10S as part of Tiger·tec Silver

FAQ

What materials is this insert intended for?
The CNMA120412-RK5 WKK10S insert is specified for cast iron applications; the WKK10S grade and Tiger·tec Silver series are optimised for abrasive cast-iron machining.

How does the RK5 chipbreaker influence machining?
The RK5 chipbreaker promotes short, controlled chips when turning cast iron, improving chip evacuation and reducing machine downtime associated with chip handling.

Is the insert suitable for interrupted cuts and heavy depths of cut?
Yes, the rhombic 80° geometry and a corner radius of 1.2 mm deliver a robust cutting edge that tolerates shock loads, making the insert suitable for many interrupted-cut scenarios in cast iron.

Which holder type is required for this insert form?
The CNMA form fits standard indexable turning holders designed for rhombic 80° inserts; verify holder compatibility with the CNMA120412-RK5 designation before mounting.

Does the Tiger·tec Silver series require special cutting fluids?
The coating and grade are designed to perform across common machining strategies; appropriate coolant or minimal lubrication regimes should be chosen based on component metallurgy and cycle objectives rather than coating constraints.

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

Die Walter AG (Markenauftritt: Walter Tools) mit Hauptsitz in Tübingen gehört zu den weltweit führenden Herstellern von Präzisionswerkzeugen für die Metallbearbeitung und ist Teil des schwedischen Sandvik-Konzerns. Geschützte Markenzeichen und Warenbezeichnungen liegen im Recht ihrer jeweiligen Eigentümer. Markennamen und geschützte Warenzeichen werden ausschließlich zu Erklärungszwecken genannt. Es besteht keinerlei Verbindung zwischen unserem Unternehmen und den genannten Marken. Es handelt sich bei dem angebotenen Artikel um originale fabrikneue Waren des Herstellers.