SCMT120408-RM4 WMP20S RM4 Wendeplatten - Walter Tools

High process reliability and stable chip formation from the Tiger‑tec Silver grade ensure longer tool life and consistent finishes; combined with the RM4 chipbreaker and 0.8 mm corner radius this insert is optimised for demanding stainless steel operations. Order the SCMT120408‑RM4 WMP20S insert directly via Metav Werkzeuge or ask our consultants for application advice.

SCMT120408-RM4 WMP20S indexable insert for drilling/boring and turning by Walter Tools — Tiger‑tec Silver for stainless steel

SCMT120408-RM4 WMP20S is a square 90° indexable insert designed for machining stainless steel under medium to robust conditions, offering controlled chip formation and reliable edge stability

• Tiger‑tec Silver coating technology
• RM4 chipbreaker for stable chips
• Suitable for stainless steel (ISO M)
• Square 90° insert with 0.8 mm radius

Consistent performance in stainless steel machining

The WMP20S grade, featured in the Tiger‑tec Silver series, is formulated to address the specific challenges of stainless steel: toughness, a tendency to form built‑up edge and high heat generation. The combination of a 0.8 mm corner radius and a 7° relief angle supports a robust cutting edge that resists chipping while the RM4 chipbreaker promotes predictable chip control. For production environments this leads to fewer unplanned tool changes and steadier component quality, improving overall process reliability and reproducibility.

Improved productivity and economical operation

A coated carbide grade tuned for M‑group materials reduces wear and maintains a stable cutting edge over time, translating into longer effective tool life and fewer indexings. The insert’s geometry and chip control deliver a steady surface finish with reduced risk of workpiece damage, which supports shorter secondary operations and lower cycle times. These technical advantages create a clear cost–benefit effect in series production: higher productivity with predictable maintenance intervals and consistent results across batches.

Practical handling and application guidance

The square 90° form factor is compatible with standard toolholders for indexable inserts, simplifying tool supply and holder selection. The moderate corner radius balances edge strength with surface quality, making the insert suitable for a range of turning and drilling‑related operations in stainless steel. For users less familiar with ISO material groups: M denotes stainless steels, which typically require grades that promote safe chip formation and thermal stability—exactly the focus of this Walter Tools grade. The clear designation SCMT120408‑RM4 WMP20S helps to match inserts to tooling systems and cutting data tables quickly.

Contact Metav Werkzeuge for tailored application advice and availability of the Walter Tools SCMT120408-RM4 WMP20S insert

Technical Data

• SKU: SCMT120408-RM4-WMP20S-WALTER
• Designation: SCMT120408-RM4 WMP20S
• Product type: Indexable insert for drilling/boring and turning
• Manufacturer: Walter Tools

Core specifications

• Relief angle: 7°
• Corner radius: 0.8 mm
• Insert shape: Square 90°
• Size: 12
• Thickness: 04
• Chipbreaker: RM4
• Grade/series: WMP20S / Tiger‑tec Silver

Materials & features

• Suitable for: stainless steel (ISO M)
• Coated carbide grade: WMP20S
• Series: Tiger‑tec Silver
• Execution: T
• Tolerance class: M

FAQ

Which materials is this insert best suited for?
The SCMT120408‑RM4 WMP20S insert is optimised for stainless steel (ISO group M), providing stable chip formation and thermal resilience for tougher, sticky alloys.

What benefit does the RM4 chipbreaker offer?
The RM4 chipbreaker promotes controlled, short to medium chips in turning and cutting operations, reducing entanglement and improving surface quality while protecting the cutting edge.

How does the Tiger‑tec Silver series improve tool life?
Tiger‑tec Silver coating enhances wear resistance and thermal stability for the WMP20S grade, resulting in a more durable cutting edge and more consistent performance over multiple components.

Why is the 0.8 mm corner radius important?
A 0.8 mm radius increases edge strength and reduces the risk of micro‑chipping, while still allowing good surface finish; it is a compromise between robustness and quality for medium to heavy cuts.

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

Protected trademarks and product names are the property of their respective owners and are mentioned for explanation only. There is no affiliation between our company and the mentioned brands. The offered item is an original, factory‑new product of the manufacturer.