CCMT120408-FK6 WKK20S WKK20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating and the WKK20S grade for dependable cast-iron machining; reduced insert changes and consistent chip control support a steady production flow. Order directly via Metav Werkzeuge or consult the team for application advice.

CCMT120408-FK6 WKK20S turning insert for cast iron by Walter Tools

CCMT120408-FK6 WKK20S is a rhombic 80° turning and boring insert designed for productive machining of cast iron components in industrial turning applications.

• Tiger·tec Silver coating for long tool life
• Optimised FK6 chipbreaker for cast iron chips
• Rhombic 80° insert with 0.8 mm nose radius
• 7° clearance angle for stable cutting

Extended tool life and reliable chip control for cast iron production

The Tiger·tec Silver technology combined with the grade WKK20S targets the abrasive wear typical of cast iron workpieces, delivering extended tool life and fewer tool changes. The insert’s FK6 chipbreaker is configured specifically for the short, brittle chips produced when machining cast iron, promoting controlled chip breakage and uninterrupted material removal. By reducing unplanned interventions, the result is a more predictable machining cycle time and lower overall production costs.

Geometry tuned for surface quality and process stability

A rhombic 80° insert form with a 0.8 mm nose radius and 7° clearance angle balances edge strength with the ability to produce a fine surface finish. The rhombic shape offers favourable approach geometry for both light and medium-depth turning passes, while the specified nose radius helps to smooth the workpiece surface without compromising tool robustness. The 7° clearance reduces rubbing and heat build-up behind the cutting edge, which contributes to consistent dimensional accuracy across series production.

Practical integration into workshop setups and machining strategies

The CCMT120408-FK6 insert is delivered in the familiar CCMT format and suits typical turning toolholders that accept rhombic 80° inserts. The coated carbide construction and the WKK20S composition ensure the insert performs consistently under the abrasive conditions found in cast iron work, supporting both roughing and finishing passes when machining en masse. For process planning, incorporate these inserts where stable chip flow and high wear resistance are priorities to improve throughput and reduce tool-change downtime.

Contact Metav Werkzeuge for application-specific recommendations on Walter Tools Tiger·tec Silver inserts and arrange tailored technical support via info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: CCMT120408-FK6-WKK20S-WALTER
• Label: Bohr-/Aufbohrwendeschneidplatte / Drehwendeschneidplatte CCMT120408-FK6 WKK20S Walter Tools
• Manufacturer: Walter Tools
• Series: Tiger-tec Silver

Core technical data

• Clearance angle: 7°
• Nose radius: 0.8 mm
• Insert shape: Rhombic 80°
• Insert size: 12
• Thickness code: 04
• Tolerance class: M
• Chipbreaker: FK6

Special features

• Grade: WKK20S
• Coated carbide (Tiger·tec Silver)
• Suitable for: cast iron
• Execution: T
• Product type: Bohr-/Aufbohrwendeschneidplatte / Drehwendeschneidplatte

FAQ

What materials is this insert intended for?
The CCMT120408-FK6 WKK20S insert is formulated primarily for cast iron applications and is optimised to handle the abrasive wear and short, brittle chips typical of these materials.

How does the FK6 chipbreaker affect production?
The FK6 chipbreaker on this Walter Tools insert promotes consistent chip segmentation when turning cast iron, which reduces chip-related interruptions and supports continuous, efficient material removal.

Can this insert be used for finishing passes?
Yes, the combination of a 0.8 mm nose radius and the rhombic geometry allows the insert to achieve good surface quality in finishing operations while maintaining edge stability for serial production.

Which series and grade does the insert belong to?
This article is part of the Tiger·tec Silver series and carries the WKK20S grade, a coated carbide composition designed for durable performance on cast iron.

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

Protected trademarks and trade names are the property of their respective owners. Brand names are mentioned for clarification only; there is no affiliation between our company and the named brands. The offered article is an original, factory-new product of the manufacturer.