CCMT09T308-RK4 WKK10S WKK10S Wendeplatten - Walter Tools

Take advantage of the combination of high wear resistance, reliable chip control and robust edge geometry for consistent productivity in cast-iron machining; order the inserts or request application advice from Metav Werkzeuge for seamless integration into existing tooling systems.

CCMT09T308-RK4 WKK10S — Rhombic 80° indexable insert with Tiger·tec Silver, Walter Tools

A CCMT09T308-RK4 WKK10S indexable insert engineered for productive drilling, boring and turning of cast iron components.

• Tiger·tec Silver coating for wear resistance
• Optimised RK4 chipbreaker for cast iron chips
• Rhombic 80° form for versatile toolpaths
• 0.8 mm corner radius for robust edges

Consistent wear performance for abrasive materials

The WKK10S grade, part of the Tiger·tec Silver family, is a coated carbide designed specifically to withstand the abrasive nature of cast iron. The multilayer coating improves surface hardness and temperature resistance, which reduces flank wear under interrupted cuts and high contact pressures. This results in longer tool life and fewer insert changes, supporting predictable production runs and less machine downtime.

Reliable chip control that stabilises process cycles

Equipped with the RK4 chipbreaker, the CCMT geometry provides controlled chip formation for the short, brittle chips typical of Gusseisen (ISO group K). Improved chip control minimises re-cutting and reduces the risk of surface damage, which enhances repeatability and lowers rework rates. The combination of a dedicated chipformer and the insert’s relief geometry promotes steady cutting forces and stable tool behaviour.

Geometry and edge strength for flexible machining

The rhombic 80° shape and a 0.8 mm corner radius offer a balance of edge stability and accessibility in shoulder, face and plunge operations. The insert’s CCMT09T308-RK4 designation indicates a medium-sized form with T3 thickness, suitable for both moderate radial engagement and robust depth of cut. The tolerance class M ensures dimensional consistency across batches, supporting repeatable tool setting and predictable fixture clearances.

Application efficiency and process advantages

When applied in cast-iron turning or boring, the coated grade and chipbreaker combination reduce cycle interruptions and cooling demands, allowing higher uninterrupted cutting lengths. The insert’s design supports efficient material removal while maintaining surface quality, making it a cost-effective choice for batch production and single-piece flow alike. Operators and process engineers gain a reliable baseline for feed and speed optimisation when working within ISO K recommendations.

Secure high-productivity machining with Walter Tools Tiger·tec Silver inserts — contact Metav Werkzeuge for application advice and availability at info@metav-werkzeuge.com or +49 2822 7131930

Technical Data

• Article number: CCMT09T308-RK4-WKK10S-WALTER
• Name: CCMT09T308-RK4 WKK10S
• Manufacturer: Walter Tools
• Series: Tiger·tec Silver

Facts

• Relief angle: 7°
• Corner radius: 0.8 mm
• Insert size: 09
• Plate shape: Rhombic 80°
• Thickness: T3
• Tolerance class: M

Special features

• Grade: WKK10S
• Chipbreaker: RK4
• Product type: Bohr-/Aufbohrwendeschneidplatte / Drehwendeschneidplatte (indexable insert for drilling/boring and turning)
• Suitable for: cast iron (ISO group K)
• Geometry: CCMT09T308-RK4

FAQ

Which materials is this insert intended for?
The CCMT09T308-RK4 WKK10S insert is developed for machining cast iron (ISO group K) and the grade’s properties are matched to the abrasive and fragmented-chip behaviour of those materials.

How does the Tiger·tec Silver coating improve performance?
The Tiger·tec Silver coating increases thermal stability and surface hardness of the WKK10S grade, reducing wear rates and allowing more consistent cutting performance under intermittent and continuous cutting conditions.

What advantages does the RK4 chipbreaker provide?
The RK4 chipbreaker produces short, controlled chips in brittle materials, reducing chip entanglement and improving surface finish and process stability during turning, boring and drilling operations.

Is the insert dimensionally consistent for automated tool setting?
Yes; the insert is manufactured to tolerance class M, which supports repeatable tool setting and accurate positioning in automated or manual toolholders.

Can the CCMT09T308-RK4 be used for heavy interrupted cuts?
The rhombic 80° form and 0.8 mm corner radius provide a robust edge capable of handling moderate interrupted cuts; for extreme interruption, toolholder and machine stiffness should be evaluated alongside cutting parameters.

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

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