VCMT160408-FM4 WMP20S WMP20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger‑tec Silver coating for improved edge stability, the FM4 chipbreaker for secure chip control and the compact 35° rhombic geometry for precise turning of rostfreier Stahl; order the VCMT160408-FM4 WMP20S directly via Metav Werkzeuge or contact our consultants for application advice.

VCMT160408-FM4 WMP20S rhombic 35° indexable turning insert for rostfreier Stahl — Walter Tools

The VCMT160408-FM20S WMP20S insert is a rhombic 35° indexable turning insert intended for medium to robust machining of rostfreier Stahl, combining a wear-resistant coat with an FM4 chipbreaker for controlled swarf evacuation.

• Tiger‑tec Silver coating for edge stability
• FM4 chipbreaker for predictable chip formation
• Rhombic 35° form for versatile turning operations
• 0.8 mm corner radius for reliable surface finish

High-performance grade optimised for rostfreier Stahl

The insert uses the WMP20S grade from the Tiger‑tec Silver family, a coated carbide designed to handle the toughness and work-hardening tendency of rostfreier Stahl. The coating supports a stable cutting edge and reduces built-up edge formation, which directly improves process reliability and extends productive tool life. For workshops that require repeatable results, the combination of grade and coating translates into fewer tool changes and a steadier surface quality during medium to heavy-duty turning operations.

Geometry and edge preparation for consistent finishes

The 35° rhombic form and the 0.8 mm corner radius produce a controlled contact profile on the workpiece, helping to maintain dimensional accuracy and surface integrity in interrupted or continuous cuts. The 7° relief angle reduces rubbing while maintaining sufficient support for the cutting edge, so machining parameters can be prioritised for material removal rate without sacrificing finish. These geometric choices make the insert suitable for profiling, light turning and semi-finishing where consistent results matter.

Chip control and process security under demanding conditions

An optimised FM4 chipbreaker provides dependable swarf control when turning rostfreier Stahl, helping to avoid tangling and to maintain stable cutting forces. The secure chip formation supported by the chipbreaker reduces heat concentration at the cutting edge and lowers the risk of built-up edge, which in turn supports repeatable component tolerances and less rework. This technical advantage is especially beneficial where cycle-time consistency and machine uptime are key performance indicators.

Practical application guidance and selection tips

When pairing the insert with the correct toolholder and cutting data, the insert’s coated grade and chip geometry facilitate higher cutting speeds than uncoated grades while keeping tool wear predictable. For challenging rostfreier Stahl alloys, moderate feeds combined with stable clamping and effective coolant strategy will exploit the strengths of the WMP20S grade. For tailored recommendations on cutting parameters or toolholder selection, Metav Werkzeuge’s consultants can provide data-driven suggestions and application support.

Contact Metav Werkzeuge for detailed cutting data, availability and tailored application advice for the Walter Tools VCMT160408-FM4 WMP20S with Tiger‑tec Silver coating

Technical data

• SKU: VCMT160408-FM20S-WALTER
• Designation: VCMT160408-FM4 WMP20S
• Manufacturer: Walter Tools
• Product type: Drehwendeschneidplatte
• Series: Tiger‑tec Silver
• Grade: WMP20S
• Shape: Rhombic 35°
• Chipbreaker: FM4
• Relief angle: 7°

Facts

• Corner radius: 0.8 mm
• Clearance angle: 7°
• Insert size: 16
• Thickness code: 04
• Tolerance class: M

Special features

• Coating: Tiger‑tec Silver
• Material class: M (rostfreier Stahl application)
• Execution: T
• Optimised for stable chip formation
• Suitable for medium to robust machining conditions

FAQ

What materials is this insert designed for?
The VCMT160408-FM4 WMP20S from Walter Tools is formulated for rostfreier Stahl and performs well in medium to robust stainless steel turning applications.

How does the FM4 chipbreaker influence performance?
The FM4 chipbreaker on the VCMT160408-FM4 WMP20S promotes secure chip control, which helps to maintain stable cutting forces and reduces the risk of built‑up edge when machining rostfreier Stahl.

Is the Tiger‑tec Silver coating suitable for higher cutting speeds?
Yes. The Tiger‑tec Silver coating on the WMP20S grade supports higher cutting speeds than uncoated alternatives while keeping tool wear predictable in rostfreier Stahl machining.

Which edge radius is recommended for finishing versus roughing?
The 0.8 mm corner radius of this insert balances durability and surface quality; it is suitable for semi‑finishing and finishing. For more aggressive roughing, consider inserts with a larger radius or dedicated roughing grades.

Can the insert be reground or must it be replaced?
The VCMT160408-FM4 WMP20S is intended as a replaceable indexable insert; standard practice is to rotate or replace inserts to maintain process reliability and consistent quality.

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

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