RCMT10T3M0-RK4 WKK20S Wendeplatten - Walter Tools

Take advantage of the combination of high process reliability, targeted wear resistance and precise chip control to improve cycle times when machining cast iron. Order the insert directly via Metav Werkzeuge or contact the consultants for application-specific recommendations.

RCMT10T3M0-RK4 WKK20S — Turning indexable insert, 7° clearance, Tiger‑tec Silver (Walter Tools)

The RCMT10T3M0-RK4 WKK20S is a round turning insert engineered for productive machining of cast iron, combining a Tiger‑tec Silver coating and an RK4 chipbreaker for consistent short-chip formation.

• Tiger‑tec Silver coating for wear resistance
• Optimised for cast iron (ISO K)
• Round insert, 10 mm form factor
• RK4 chipbreaker for short chips

Faster, more consistent machining of cast iron components

The coated carbide grade WKK20S is designed to deliver stable wear behaviour when machining abrasive cast iron. By combining a wear-optimised substrate with the Tiger‑tec Silver coating, this insert extends tool life and reduces unscheduled changes, which directly supports higher machine uptime and repeatable cycle times. The data-driven choice of a 7° clearance geometry and a round insert form improves engagement angles and reduces cutting forces, resulting in predictable cutting conditions and fewer load peaks during roughing operations.

Reliable chip control and surface integrity for downstream processes

A reliable chipbreaker is essential for cast iron; the RK4 geometry produces short, controllable chips that evacuate cleanly from the cut. Short-chip formation reduces the risk of surface damage and eases automatic chip handling, which benefits both manual and automated production cells. In addition to improved chip control, the coated surface promotes consistent edge condition, supporting a steady surface finish and minimising rework on subsequent operations.

Practical handling and integration into production workflows

The insert’s round shape provides versatility across turning, profiling and light shoulder work, while the T3 thickness stabilises the cutting edge under interrupted cuts common in cast-iron components. This geometry simplifies tooling setup and reduces the number of different insert types required in a toolholder inventory. Designed for industrial environments, the grade and chipbreaker combination support a cost-effective balance between performance and tool consumption, helping to lower per-part tooling costs and streamline inventory management.

Discuss application parameters and ordering with Metav Werkzeuge to match cutting data and holder systems; the team can advise on speeds, feeds and clamping for optimal performance

Technical Data

• SKU: RCMT10T3M0-RK4-WKK20S-WALTER
• Designation: RCMT10T3M0-RK4 WKK20S
• Product type: Turning indexable insert
• Manufacturer: Walter Tools

Facts

• Insert form size: 10
• Plate thickness: T3
• Relief angle: 7°
• Tolerance class: M

Special features

• Coating: Tiger‑tec Silver
• Grade: WKK20S (coated carbide)
• Chipbreaker: RK4
• Shape: Round
• Application: Cast iron (ISO K)
• Series: Tiger‑tec Silver

FAQ

What materials is this insert intended for?
The RCMT10T3M0-RK4 WKK20S insert is optimised for machining cast iron (ISO K) and is designed to handle the abrasive and brittle chip formation typical of these materials.

How does the Tiger‑tec Silver coating affect performance?
The Tiger‑tec Silver coating on the WKK20S grade improves wear resistance and thermal stability, extending edge life and maintaining consistent cutting conditions when machining cast iron.

What advantage does the RK4 chipbreaker provide?
The RK4 geometry produces short, manageable chips that evacuate reliably, reducing surface damage risk and simplifying chip handling in automated or manual setups.

Is this insert suitable for interrupted cuts?
Yes—the T3 thickness and round form offer edge robustness that helps absorb impacts from interrupted cuts, making this insert suitable for many common turning operations in cast-iron machining.

Can this grade be used for finishing operations?
While optimised for productive roughing and semi-finishing on cast iron, the insert can achieve satisfactory finishes when cutting parameters are adjusted; consult tooling data for recommended feeds and speeds.

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Manufacturer/Responsible: Walter AG; Tübingen; Germany