VNMG160404-NMS WSM20S NMS Wendeplatten - Walter Tools

Benefit from the combination of Tiger·tec Silver coating, a robust NMS chipbreaker and the 0° negative rake for secure, repeatable turning of stainless steels and heat-resistant alloys; order via Metav Werkzeuge or ask its consultants for application guidance.

VNMG160404-NMS WSM20S indexable turning insert — Tiger·tec Silver, negative 0° | Walter Tools

The VNMG160404-NMS WSM20S is an indexable turning insert engineered for demanding turning applications on stainless steels and heat‑resistant superalloys, delivering stable chip formation and long tool life.

• Tiger·tec Silver coated carbide
• Optimised chip control with NMS breaker
• Negative 0° rake for secure cutting
• Rhombic 35° shape for versatile engagement

Reliable performance on stainless steels and superalloys

The combination of the Tiger·tec Silver coating and the WSM20S grade gives a clear advantage when tackling materials that tend to work‑harden or generate high cutting temperatures. The coated cemented carbide substrate improves thermal resistance and wear behaviour, which translates into longer tool life and more consistent component surfaces. For production environments where reproducible results matter, this specification reduces unscheduled tool changes and helps maintain cycle‑time stability.

Stable chip control and predictable edge life

The NMS chipbreaker is designed to create short, controlled chips in difficult‑to‑cut materials. This promotes secure chip evacuation and reduces the risk of built‑up edge, which is a common challenge when machining austenitic stainless steels. The practical benefit is fewer interruptions for chip management and a reduced need for manual cleaning, contributing to a steadier production flow and improved process efficiency.

Geometry tuned for secure turning and versatility

With a rhombic 35° shape and a 0.4 mm corner radius, the insert supports both finishing and medium turning tasks while maintaining a stable cutting edge. The 0° (negative) rake increases cutting edge strength and is particularly useful where robustness is required, for example with interrupted cuts or hard inclusions. This geometry enables machinists to achieve a balance between surface quality and tool lifetime without frequent set‑up changes.

Application advice and process reliability

This grade is intended primarily for stainless steels (ISO M) and for heat‑resistant alloys/titanium (ISO S) depending on component design and cutting parameters. The insert’s specification suits workshops seeking a single, reliable grade for a range of demanding materials, reducing tool inventory complexity. For best results, pair the insert with rigid tooling and stable clamping to exploit its edge stability; suitable feeds and speeds will vary with component geometry and machine capability.

Contact Metav Werkzeuge for tailored application recommendations on Walter Tools Tiger·tec Silver inserts — expert guidance and quick delivery for the VNMG160404-NMS WSM20S is available via email at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical Data

• Article number: VNMG160404-NMS-WSM20S-WALTER
• Manufacturer: Walter Tools
• Product type: Indexable turning insert (Drehwendeschneidplatte)
• Designation: VNMG160404-NMS WSM20S

Facts

• Insert size: 16 mm
• Thickness: 04
• Corner radius: 0.4 mm
• Plate form: Rhombic 35°
• Free/relief angle: 0° (negative)
• Tolerance class: M

Special features

• Coating/series: Tiger·tec Silver
• Grade/sort: WSM20S
• Chipbreaker: NMS
• Material suitability: stainless steels (ISO M), superalloys/titanium (ISO S)
• Intended use: machining of difficult‑to‑cut materials; enhanced edge stability

FAQ

What materials is this insert suitable for? The VNMG160404‑NMS WSM20S is specified for stainless steels (ISO M) and for heat‑resistant superalloys or titanium (ISO S), offering reliable performance where heat resistance and secure chip formation are required.

How does the Tiger·tec Silver coating benefit machining? The Tiger·tec Silver coating increases thermal resistance and wear protection of the cemented carbide substrate, which improves edge life and maintains consistent surface finish during extended turning operations.

Why choose a negative 0° rake for turning? A 0° negative rake increases the robustness of the cutting edge, making the insert less prone to chipping during interrupted cuts or when machining materials with hard inclusions, thus enhancing process reliability.

What is the role of the NMS chipbreaker? The NMS chipbreaker produces short, controllable chips in difficult materials, aiding chip evacuation and reducing the likelihood of built‑up edge — this supports uninterrupted production and reduces manual chip handling.

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

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