CCMT120408-RK4 WKK10S WKK10S Wendeplatten - Walter Tools

Benefit from the combination of the Tiger·tec Silver coating, an optimised RK4 chipbreaker and the 80° rhombic geometry for reliable, productive cast-iron machining. Order the CCMT120408-RK4 WKK10S directly via Metav Werkzeuge or consult our specialists for application support.

CCMT120408-RK4 WKK10S — Indexable insert for drilling and turning, Tiger·tec Silver, Walter Tools

The CCMT120408-RK4 WKK10S is an 80° rhombic indexable insert designed for productive machining of cast iron, combining a wear-resistant Tiger·tec Silver grade with a controlled chipforming RK4 geometry for stable, repeatable results.

• Tiger·tec Silver coating for high wear resistance
• Optimised RK4 chipbreaker for controlled chips
• 80° rhombic geometry for stable cutting
• 0.8 mm corner radius for robust edge life

Stable performance on abrasive cast-iron workpieces

The coated carbide WKK10S grade, part of the Tiger·tec Silver family, is engineered specifically for cast iron, where abrasive wear and short, breaking chips are common. The coating increases wear resistance and thermal stability, which reduces flank wear during continuous operation and extends tool life. For production runs where consistency matters, the combination of grade and coating delivers fewer insert changes and more predictable machining cycles, supporting higher uptime and lower tool consumption over time.

Geometry designed to improve process reliability

The 80° rhombic plate form and the RK4 chipbreaker work together to provide mechanical stability and effective chip control. The moderate 0.8 mm corner radius improves edge robustness for interrupted or heavy cuts, while the 7° clearance angle helps to reduce rubbing and minimise built-up edge. These geometrical choices translate directly into better surface quality and lower vibration, which in turn reduces rework and enhances the repeatability of each operation.

Practical application and process guidance for production

This indexable solution suits drilling, boring and turning operations where cast iron is the primary workpiece material. The insert's tolerance class M supports consistent seating in toolholders, enabling accurate repositioning and reliable cutting performance across multiple indexings. For typical feeds and speeds, favour conditions that exploit the grade's abrasion resistance rather than extreme cutting temperatures; this approach prolongs edge life and keeps chip behaviour steady. For further process data or to confirm compatibility with a specific holder, technical consultation is available through Metav Werkzeuge.

For application advice or to source the CCMT120408-RK4 WKK10S, contact Metav Werkzeuge for local availability and technical consultation at info@metav-werkzeuge.com or +49 2822 7131930

Technical Data

• Article number: CCMT120408-RK4-WKK10S-WALTER
• ISO designation: CCMT120408-RK4 WKK10S
• Manufacturer: Walter Tools

Facts

• Size code: 12
• Thickness code: 04
• Corner radius: 0.8 mm
• Clearance angle: 7°
• Tolerance class: M

Special features

• Series: Tiger·tec Silver
• Grade: WKK10S (coated carbide)
• Chipbreaker: RK4
• Plate form: Rhombus 80°
• Suitable for: cast iron
• Execution: T

FAQ

What materials is this insert best suited for?
The CCMT120408-RK4 WKK10S is optimised for machining cast iron, with the WKK10S grade and Tiger·tec Silver technology tuned to resist abrasive wear and stabilise chipbreaking.

How does the RK4 chipbreaker affect chip control?
The RK4 chipbreaker promotes short, manageable chips on cast-iron applications, improving evacuation and reducing the risk of entanglement during drilling and turning operations.

Can this insert be used for interrupted cuts?
Yes; the 0.8 mm corner radius and the robust grade provide enhanced edge strength suitable for interrupted and semi-heavy cutting conditions in cast iron.

What does the tolerance class M mean for mounting accuracy?
Tolerance class M indicates consistent dimensional accuracy for seating and indexing, which supports repeatable positioning in compatible toolholders.

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

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