CCMT120408-MM4 WSM20S MM4 Wendeplatten - Walter Tools

Benefit from the combination of Tiger·tec Silver coating and the WSM20S grade for reliable, repeatable performance on stainless steels and heat‑resistant superalloys; the robust MM4 chipbreaker and 0.8 mm corner radius provide secure chip control and extended edge life. Order the insert directly via Metav Werkzeuge or consult our specialists for application advice.

CCMT120408-MM4 WSM20S – Turning insert Tiger·tec Silver for stainless steels and superalloys | Walter Tools

A CCMT120408-MM4 WSM20S turning insert engineered for demanding turning operations in rostfreie Stähle and heat‑resistant alloys, combining a wear‑resistant coating with a secure chip‑forming geometry.

• Tiger·tec Silver coating for enhanced wear resistance
• Optimised MM4 chipbreaker for secure chip control
• 0.8 mm corner radius for improved edge strength
• Suitable for stainless steels and superalloys (ISO M & S)

High‑performance grade for demanding materials

The WSM20S grade from the Tiger·tec Silver family delivers a focused balance between thermal stability and wear resistance, specifically tuned for the challenges of machining stainless steels and superalloys. This cutting grade reduces edge wear under cyclical thermal loads, which translates into more consistent tool life and fewer insert changes. For production environments that demand repeatable results, the coated substrate ensures reliable performance during both roughing and finishing passes.

Geometry and chip control for consistent machining

The rhombic Rhombus 80° shape combined with the MM4 chipbreaker and a 0.8 mm corner radius yields stable cutting behaviour and improved surface integrity. A 7° clearance supports secure cutting engagement while reducing rubbing at the flank, which helps to preserve the cutting edge. These geometric choices promote predictable chip formation and evacuation, reducing the risk of built‑up edge and minimising vibration—outcomes that support higher process efficiency and better finished surfaces.

Application fit and process reliability

Designed for use where material groups M and S are prevalent, the insert suits workshops working on corrosion‑resistant steels and heat‑resistant superalloys in sectors such as aerospace, energy and medical components. The tolerance class M and the insert’s production standards provide dimensional consistency during index changes, aiding stable tool offsets and quick setup. As a result, the insert contributes to lower scrap rates and smoother batch production, helping shops keep machines productive and maintenance predictable.

For detailed machining recommendations or to discuss the CCMT120408-MM4 WSM20S from Walter Tools for a specific application, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 — our consultants will advise on optimal cutting data and tool holders.

Technical Data

• Article number: CCMT120408-MM4-WSM20S-WALTER
• SKU: CCMT120408-MM4-WSM20S-WALTER
• Designation: CCMT120408-MM4
• ISO designation: CCMT120408-MM4 WSM20S
• Grade: WSM20S
• Series: Tiger-tec Silver

Facts

• Corner radius: 0.8 mm
• Clearance angle: 7°
• Insert shape: Rhombus 80°
• Size: 12
• Thickness code: 04
• Tolerance class: M

Special features

• Coating: Tiger·tec Silver
• Chipbreaker: MM4
• Material compatibility: S / M (superalloys / stainless steels)
• Execution: T
• Product type: Turning insert / indexable insert
• Manufacturer: Walter Tools

FAQ

What materials is this insert suitable for?
The CCMT120408-MM4 WSM20S insert is specified for stainless steels (ISO M) and heat‑resistant superalloys (ISO S) thanks to the WSM20S grade and Tiger·tec Silver coating.

Which chipbreaker is fitted and what is its benefit?
The insert features the MM4 chipbreaker, which promotes controlled chip formation and reliable evacuation, improving surface quality and reducing the risk of built‑up edge.

What geometry ensures edge strength and versatility?
The Rhombus 80° form with a 0.8 mm corner radius offers a robust cutting edge suitable for both finishing and semi‑roughing operations while maintaining good access to close profiles.

Is this insert compatible with standard toolholders?
The CCMT120408-MM4 designation corresponds to standard indexable insert geometries; compatibility depends on the selected toolholder clamping system and seat designed for CCMT inserts.

How does the Tiger·tec Silver coating support productivity?
The Tiger·tec Silver coating enhances thermal resistance and reduces wear, enabling more stable cutting conditions and longer periods between index changes.

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

Protected trademarks and product names are the property of their respective owners and are mentioned solely for explanatory purposes. There is no affiliation between our company and the referenced brands. The offered item is an original, brand‑new product from the manufacturer.