CNMA120416-RK7 WKK10S WKK10S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating, a proven WKK10S carbide grade and a stable RK7 chipbreaker for reliable cast iron machining; this insert keeps cycle times predictable and tool changes minimal. Order genuine inserts directly via Metav Werkzeuge or consult our technical team for application advice.

CNMA120416-RK7 WKK10S indexable turning insert, Rhombic 80° for cast iron – Walter Tools

CNMA120416-RK7 WKK10S is an indexable turning insert designed for efficient machining of cast iron components in production environments

• Tiger·tec Silver coated carbide grade WKK10S
• Optimised for cast iron machining
• Rhombic 80° shape, 1.6 mm nose radius
• 0° negative rake for stable cutting

Durable performance for abrasive cast iron workpieces

The combination of the Tiger·tec Silver coating and the WKK10S coated carbide grade is engineered specifically for cast iron applications, where abrasive wear and short, brittle chips are typical. The coating improves resistance to thermal and abrasive wear, which translates into longer service life and reduced tooling costs in series production. The integrated RK7 chipbreaker promotes consistent chip formation and evacuation, lowering the risk of built-up edge and unplanned interruptions. This results in a robust solution for frequent interrupted cuts and heavy cross-sections, with predictable tool-life that supports stable cycle planning.

Consistent geometry for repeatable surface quality

The rhombic 80° form and a 1.6 mm nose radius deliver a balance between strength and surface finish; larger radii increase edge stability, while the rhombic geometry provides accessibility for a wide range of turning contours. The insert’s 0° (negative) rake angle provides additional cutting edge support, making the insert well suited to heavier depth-of-cut operations and applications where rigidity is limited. With a manufacturer-specified tolerance class M, dimensional consistency is maintained across indexings so insert seating and run-out remain predictable, supporting repeatable part tolerances and reliable finishing results.

Practical advantages for production and process security

Designed for pragmatic integration into turning toolholders, the insert’s size and thickness ensure stable clamping and simple indexing. The coated carbide technology focuses on process security and economical machining of abrasive materials; this keeps throughput high and rejects low. Walter Tools’ series aims to combine wide material coverage with stable chip control, enabling a single grade to serve multiple cast-iron applications. For component manufacturers seeking dependable inserts that reduce downtime and tool handling, this solution represents a technically clear and cost-effective choice.

For detailed application recommendations and to source original Walter Tools CNMA120416-RK7 WKK10S inserts, please contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 for prompt technical support and ordering guidance

Technical data

• Article number: CNMA120416-RK7-WKK10S-WALTER
• Designation: CNMA120416-RK7 WKK10S
• Series: Tiger·tec Silver

Core technical data

• Insert size: 12
• Insert thickness: 04
• Nose radius: 1.6 mm
• Shape: Rhombus 80°
• Rake angle: 0° (negative)
• Tolerance class: M

Special features

• Coating: Tiger·tec Silver
• Carbide grade: WKK10S
• Chipbreaker: RK7
• Suitable material group: Cast iron
• Execution: A

FAQ

What materials is this insert intended for?
The insert is optimised for machining cast iron; the WKK10S grade and Tiger·tec Silver coating are selected to resist abrasive wear typical of cast materials.

How does the RK7 chipbreaker affect machining?
The RK7 chipbreaker promotes short, controlled chips in brittle materials, improving evacuation and reducing the risk of chip-related interruptions during turning.

What is the benefit of the 0° negative rake angle?
A 0° (negative) rake increases edge support and stability, which is advantageous for heavier cuts and applications where rigidity is limited, leading to steadier cutting conditions.

Can this insert be used for finishing and roughing operations?
The geometry and 1.6 mm nose radius offer a compromise between strength and finish; the insert is suitable for mixed operations but selection should match the specific finishing requirement and cutting parameters.

Is this an original Walter Tools product?
Yes, this is an original factory-new Walter Tools turning insert, supplied in the Walter Tools series format and grade.

Walter Tools: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen, Germany

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