CCMT120412-RM4 WSM20S RM4 Wendeplatten - Walter Tools

The combination of a Tiger‑tec Silver coating and an optimised RM4 chipbreaker ensures reliable edge stability and consistent chip control for demanding turning tasks; the clear geometry and 1.2 mm nose radius support reproducible surface quality and long tool life. Order the CCMT120412-RM4 WSM20S directly via Metav Werkzeuge or ask our consultants if needed.

CCMT120412-RM4 WSM20S — Rhombic 80° indexable insert, Tiger‑tec Silver (Walter Tools)

The CCMT120412-RM4 WSM20S is an indexable insert engineered for turning, drilling/boring applications, and heavy-duty machining of stainless steel and heat‑resistant superalloys in industrial production environments

• Tiger‑tec Silver coating for high process security
• Optimised RM4 chipbreaker for stable chip control
• Rhombic 80° form with 1.2 mm nose radius
• Suited for stainless steel and superalloys

Reliable performance in demanding materials

The coated carbide grade WSM20S from the Tiger‑tec Silver family is specifically developed for machining stainless steel and high‑temperature alloys. Its layered coating improves thermal resistance and reduces adhesion at the cutting edge, which leads to stable chip formation and extended edge life. For production planners, this means fewer insert changes and a more predictable tooling cycle; for operators, the improved wear behaviour reduces the likelihood of unexpected regrinds. The material combination S / M indicates suitability for both superalloys and stainless steels, enabling a single insert grade to cover a broader range of workpieces without compromising performance.

Stable chip control to reduce cycle interruptions

Thanks to the RM4 chipbreaker geometry, the insert delivers controlled chip formation even under interrupted cuts or variable feed conditions. Controlled chips lower the risk of entanglement and protect the workpiece surface, which contributes to fewer machine stops and less manual intervention. In practical terms, this leads to higher machine uptime and a smoother production flow. The chip management properties of the insert are a decisive factor when machining long or complex components where consistent evacuation of swarf is critical.

Precision geometry for reproducible surface quality

The Rhombic 80° style paired with a 1.2 mm corner radius offers a balance between robustness and finishing capability. The geometry supports reliable edge strength for tougher cutting conditions while still producing consistent surface results on turned parts. The M tolerance class ensures dimensional repeatability when indexing inserts, which simplifies tool set‑up and measurement routines. For engineers focused on quality assurance, these characteristics translate into repeatable part accuracy and reduced scrap rates.

Practical integration and cost‑efficiency in production

The ISO designation aligns the insert with standard toolholders, enabling fast replacement and interchangeability within existing tooling systems. The compact profile and thickness designation facilitate stocking and sorting; the Tiger‑tec Silver series further improves lifetime performance, which contributes to lower total tooling costs over extended production runs. For additional technical guidance or to confirm suitability for a specific alloy or cycle, Metav Werkzeuge provides expert consultation and detailed cutting data on request — contact via email or telephone for tailored recommendations.

Contact Metav Werkzeuge to discuss application‑specific cutting data for the Walter Tools CCMT120412-RM4 WSM20S and to arrange fast supply and technical advice

Technical Data

• Article number: CCMT120412-RM4-WSM20S-WALTER
• Label: Bohr-/Aufbohrwendeschneidplatte / Drehwendeschneidplatte CCMT120412-RM4 WSM20S Walter Tools
• Manufacturer: Walter Tools
• Series: Tiger‑tec Silver

Facts

• Clearance angle: 7°
• Corner radius: 1.2 mm
• Insert size: 12 mm
• Thickness designation: 04
• Tolerance class: M

Special features

• Coating: Tiger‑tec Silver
• Grade / sort: WSM20S
• Chipbreaker: RM4
• Plate form: Rhombic 80°
• Material applicability: S / M (superalloys, stainless steel)
• Designation: CCMT120412-RM4

FAQ

What materials is this insert suitable for?
The CCMT120412-RM4 WSM20S is designed primarily for stainless steel and heat‑resistant superalloys (material groups S and M), offering wear resistance and edge stability for challenging workpieces.

How does the RM4 chipbreaker affect machining?
The RM4 chipbreaker on this insert supports controlled chip formation and evacuation, which reduces interruptions and helps maintain surface quality during turning operations.

What is the benefit of the Rhombic 80° geometry?
The Rhombic 80° form with a 1.2 mm corner radius combines edge strength and finishing capability, enabling reproducible surface results and reliable edge life under medium to heavy cutting conditions.

Is this insert compatible with standard CCMT toolholders?
Yes; the ISO designation CCMT120412-RM4 corresponds to standard toolholders for indexable turning inserts, allowing straightforward replacement and integration into existing tooling systems.

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

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