RCMT120400-RM4 WSM20S RM4 Wendeplatten - Walter Tools

Benefit from the combination of Tiger·tec Silver coating, an RM4 chipbreaker and a round RCMT geometry for stable machining of stainless steels and heat‑resistant alloys; the result is improved process reliability and reduced rework. Order the RCMT120400-RM4 WSM20S turning insert directly via Metav Werkzeuge or ask our consultants if needed.

RCMT120400-RM4 WSM20S — Indexable turning insert, Tiger·tec Silver, RM4 chipbreaker (Walter Tools)

The RCMT120400-RM4 WSM20S is a coated tungsten‑carbide indexable turning insert engineered for secure chip control and thermal stability when machining stainless steels and superalloys

• Tiger·tec Silver coating for heat resistance
• RM4 chipbreaker for consistent chip form
• Round RCMT geometry for profiling tasks
• Optimised for stainless steels and superalloys

Stable chip control that reduces interruptions

The combination of the RM4 chipbreaker with Walter’s coating technology promotes a consistent chip shape and reliable evacuation under interrupted and continuous cuts. That controlled chip formation reduces tool‑clamping incidents and machine stoppages, which in turn maintains cycle time and lowers the risk of surface damage. The practical effect on the shop floor is fewer tool changes and improved process throughput.

High thermal endurance for demanding materials

The insert’s WSM20S grade, applied within the Tiger·tec Silver series, is a coated carbide formulation designed for materials that generate heat and tend to form built‑up edge. This thermal resistance supports longer edge life when turning stainless steel and heat‑resistant superalloys, enabling more consistent component tolerances and fewer regrinds. The result is predictable tool life and greater confidence in finishing passes.

Geometry tailored for profiling and stability

A round RCMT form with an inscribed circle of 12 mm and the specified 7° clearance produces a secure cutting edge suited to profiling, radius turning and special contour work. The zero nose radius specification provides a defined cutting point for precise detail work while the round‑form strength helps absorb cutting forces. This geometry balances finish quality with edge robustness, supporting both roughing and finishing operations depending on insert seat and toolholder selection.

Measurable shop benefits and process confidence

Using this indexable insert leads to tangible improvements: enhanced process security, stable cutting edges and dependable surface quality. The Tiger·tec Silver technology and the RM4 chipbreaker combine to reduce edge build‑up and promote stable swarf control, which lowers scrap rates and improves first‑pass yield. For production environments machining corrosive or high‑temperature alloys, this translates into predictable outputs and reduced unplanned downtime—key criteria for competitive manufacturing.

Contact Metav Werkzeuge today to discuss how the Walter Tools RCMT120400-RM4 WSM20S insert can be matched to specific materials and cutting parameters, and to confirm current availability and delivery options at Metav Werkzeuge.

Technical Data

• Article number: RCMT120400-RM4-WSM20S-WALTER
• Manufacturer: Walter Tools
• Product type: Indexable turning insert
• Grade/series: WSM20S, Tiger·tec Silver

Numbers / Core technical data

• Relief angle: 7°
• Nose radius: 0
• Inscribed circle / size: 12
• Thickness: 04
• Tolerance class: M

Designs / Special features

• Round RCMT plate form
• Chipbreaker: RM4
• Applicable material groups: S / M (superalloys, titanium; stainless steel)
• Execution: T
• Coated carbide grade within Tiger·tec Silver

FAQ

What materials is this insert suitable for?
The RCMT120400-RM4 WSM20S insert is optimised for stainless steel and heat‑resistant superalloys (groups S and M), reflecting the WSM20S grade and Tiger·tec Silver coating performance.

Which chip behaviour can be expected with the RM4 chipbreaker?
The RM4 chipbreaker on this insert promotes short, manageable chips and consistent swarf control, reducing the likelihood of entanglement and improving machining continuity with the RCMT geometry.

Is this insert suitable for both roughing and finishing operations?
Yes. The round RCMT shape and the grade’s thermal stability allow a versatile application range; toolholder setup and cutting data determine whether it is used for roughing or finishing.

How does the Tiger·tec Silver series help with tool life?
Tiger·tec Silver coating enhances edge resistance to heat and adhesive wear, which helps maintain cutting‑edge integrity under demanding thermal loads and extends effective tool life.

Which SKU should be ordered for this specific configuration?
Order SKU RCMT120400-RM4-WSM20S-WALTER to obtain the Walter Tools RCMT120400-RM4 WSM20S indexable insert in the Tiger·tec Silver series.

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

Protected trademarks and trade names are the property of their respective owners. Brand names are used for descriptive purposes only; there is no affiliation between our company and the manufacturers mentioned. The item offered is original, factory‑new goods from the manufacturer.