SCMT120408-RM4 WSM20S RM4 Wendeplatten - Walter Tools

Take advantage of the combination of the WSM20S grade and Tiger·tec Silver coating for stable cutting in rostfreier Stahl and heat‑resistant alloys; the RM4 chipbreaker and square 90° form deliver predictable chip control and consistent surface finish. Order the insert directly via Metav Werkzeuge or consult the specialists for application-specific recommendations.

SCMT120408-RM4 WSM20S square 90° turning indexable insert — Tiger·tec Silver, Walter Tools

The SCMT120408-RM4 WSM20S is a square 90° turning insert engineered for reliable performance in rostfreier Stahl and heat‑resistant superalloys, offering a controlled chipflow geometry for demanding turning operations.

• Tiger·tec Silver coating for thermal stability
• WSM20S grade for rostfreier Stahl and superalloys
• RM4 chipbreaker for predictable chip control
• Square 90° form with 0.8 mm corner radius

High productivity through thermal stability and grade selection

The combination of the Tiger·tec Silver coating and the WSM20S carbide grade is designed to maintain cutting performance under elevated temperatures typical of machining rostfreier Stahl and nickel‑base alloys. The coating reduces heat transfer to the cutting edge while the grade balances toughness and wear resistance, which leads to fewer insert changes and a steadier production rhythm. This engineering focus on thermal stability translates directly into improved tool life and lower cycle‑time variability, supporting leaner machining processes.

Geometry that secures surface quality and chip management

A square 90° shape with a 0.8 mm corner radius and 7° clearance delivers robust edge support and stable contact conditions. The RM4 chipbreaker is optimised for short, controllable chips on interrupted and continuous cuts, reducing the risk of built‑up edge and improving surface finish consistency. For operations where a predictable cutting force and repeatable results are required, this geometry helps to minimise vibration and produce consistent dimensional accuracy, particularly when paired with suitable toolholders for SCMT‑style inserts.

Application scope and workshop advantages

Designed for machining in material groups M and S, the insert is suitable where rostfreier Stahl and heat‑resistant superalloys or titanium present machining challenges such as high work‑hardening tendency and poor thermal conductivity. The SCMT120408-RM4 format simplifies tool inventory management by fitting standard square indexable pockets and enabling rapid corner changes. Process planners benefit from fewer interruptions for tool change‑over and from the reproducible cutting behaviour that reduces scrap rates and rework. For selection advice or material‑specific cutting data, Metav Werkzeuge provides technical support and cutting‑parameter guidance.

For tailored recommendations on using the SCMT120408-RM4 WSM20S insert in rostfreier Stahl or superalloys, contact Metav Werkzeuge at +49 2822 7131930 or info@metav-werkzeuge.com for application support and delivery options

Technical Data

• SKU: SCMT120408-RM4-WSM20S-WALTER
• Designation: SCMT120408-RM4 WSM20S
• Manufacturer: Walter Tools
• Series: Tiger·tec Silver

Core Technical Data

• Clearance angle: 7°
• Corner radius: 0.8 mm
• Plate size: 12
• Plate thickness: 04
• Tolerance class: M

Special features

• Coating: Tiger·tec Silver
• Grade: WSM20S (coated carbide)
• Chipbreaker: RM4
• Plate form: Square 90°
• Material application: M (rostfreier Stahl)
• Material application: S (heat‑resistant superalloys and titanium)

FAQ

What materials are best suited for this insert?
The SCMT120408-RM4 WSM20S is specified for material groups M and S; it is particularly effective when machining rostfreier Stahl and heat‑resistant superalloys or titanium.

How does the RM4 chipbreaker affect chip control?
The RM4 chipbreaker on the WSM20S grade produces short, controlled chips that reduce tangling and aid in consistent surface quality during turning operations.

Is the insert suitable for interrupted cuts?
Yes, the square 90° geometry and the WSM20S grade provide robust edge support for interrupted and continuous turning applications while maintaining tool life.

Which series does this insert belong to and what is its benefit?
Belonging to the Tiger·tec Silver series, the insert offers enhanced thermal resistance and better edge stability compared with uncoated grades, which supports higher cutting speeds and longer tool life.

Can standard SCMT toolholders be used with this insert?
The SCMT120408‑style designation indicates compatibility with common toolholders for square 90° indexable inserts; confirm holder type and clamping geometry prior to use.

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

Trademarks and trade names are the property of their respective owners. Walter Tools is mentioned for identification of the original manufacturer; the offered item is an original, factory‑new product. Mark names are cited exclusively for explanation; there is no affiliation between Metav Werkzeuge and the named manufacturers.