CPMW09T304-RK6 WKK20S RK6 Wendeplatten - Walter Tools

Take advantage of a coated carbide grade that is optimised for abrasive cast iron machining and a proven RK6 chipbreaker to keep production stable and predictable; order directly via Metav Werkzeuge or consult their specialists for application-specific recommendations.

CPMW09T304-RK6 WKK20S indexable turning insert — RK6 chipbreaker, Tiger·tec Silver (Walter Tools)

The CPMW09T304-RK6 WKK20S is an indexable turning insert engineered for productive machining of cast iron components in industrial turning applications.

• Tiger·tec Silver coating for high wear resistance
• Optimised RK6 chipbreaker for broken chips
• Rhombic 80° shape for versatile turning
• 0.4 mm corner radius for consistent edge life

Consistent productivity for abrasive cast iron work

The coated carbide grade WKK20S in the Tiger·tec Silver family is tuned to handle the abrasive nature of cast iron (material group K), delivering stable chip formation and reliable tool life. Thanks to the combination of a hard, wear-resistant coating and a substrate optimised for brittle-chip materials, the insert reduces unexpected downtime and supports steady machining parameters. This results in improved throughput and fewer insert changes in repetitive turning operations.

Precise chip control and edge stability

The RK6 chipbreaker is designed to produce short, controllable chips when turning cast iron, lowering the risk of chip tangling and machine interruption. Paired with a 0.4 mm corner radius and a 11° relief angle, the geometry balances strength at the cutting edge with the ability to generate predictable cutting forces. The outcome is improved process reliability and a consistent surface finish, which simplifies downstream inspection and reduces rework.

Versatile geometry that supports shop flexibility

A rhombic 80° insert form offers broad application potential across facing and turning tasks, enabling fewer tool changes and simpler toolholders on the shop floor. The insert thickness (T3) and tolerance class M contribute to repeatable seating and positional accuracy in tool clamping systems, supporting quick index changes. For workshops seeking to streamline tooling inventories, this insert provides a practical compromise between rigidity and application range.

Application guidance and quality considerations

This insert is specified for cast iron machining according to ISO group K; it is a coated carbide grade intended for abrasive, short-chip conditions common in cast components. Selection of cutting parameters should reflect workpiece hardness and machine stiffness to leverage the Tiger·tec Silver coating’s wear resistance. Metav Werkzeuge can support process optimisation with cutting data recommendations and grade comparisons to match operational goals.

Contact Metav Werkzeuge for tailored Walter Tools turning recommendations and rapid supply — info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• SKU: CPMW09T304-RK6-WKK20S-WALTER
• Article: CPMW09T304-RK6 WKK20S
• Manufacturer: Walter Tools
• Product type: indexable turning insert

Facts

• Insert size: 09
• Thickness: T3
• Relief angle: 11°
• Corner radius: 0.4 mm
• Shape: Rhombic 80°
• Tolerance class: M

Special features

• Grade: WKK20S (coated carbide)
• Series: Tiger·tec Silver
• Chipbreaker: RK6
• Application: Cast iron (ISO group K)
• Execution: W

FAQ

What materials is this insert suitable for?
The insert is intended for machining cast iron; the WKK20S grade and Tiger·tec Silver coating are optimised for abrasive, short-chip cast materials.

How does the RK6 chipbreaker affect production?
The RK6 chipbreaker promotes short, controlled chips during cast iron turning, which reduces chip management issues and supports continuous, stable production.

Can the insert be used for finishing operations?
With a 0.4 mm corner radius and a coated grade focused on wear resistance, the insert can deliver consistent surface quality in many finishing passes on cast iron when appropriate feeds and speeds are selected.

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

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.