SNMG190616-NRS WSM20S WSM20S Wendeplatten - Walter Tools

Achieve consistent chip formation and extended tool life through the combination of the Tiger·tec Silver coating and the NRS chipbreaker, optimised for machining stainless steel and heat‑resistant alloys; order the insert directly via Metav Werkzeuge or consult our specialists for application advice.

SNMG190616-NRS WSM20S — square turning insert for stainless steel and superalloys by Walter Tools

SNMG190616-NRS WSM20S is an indexable turning insert designed for heavy‑duty and difficult‑to‑cut materials in demanding production environments

• Tiger·tec Silver coating for enhanced wear resistance
• NRS chipbreaker for stable chip control
• Suitable for stainless steel and superalloys
• Square 90° geometry with 1.6 mm corner radius

Consistent production performance and lower tool costs

The Tiger·tec Silver coating combined with the WSM20S grade delivers a balance of wear resistance and thermal stability that reduces flank wear and prolongs edge life. The reinforced coating system is designed to withstand the heat and adhesion typical when machining stainless steel and high‑temperature alloys, so tool changes are required less frequently and process stability is improved. This result is fewer interruptions in production, a lower cost per part and predictable tool behaviour under elevated cutting temperatures.

Application guidance for demanding materials

Machining groups S and M (heat‑resistant superalloys and stainless steel) place heavy demands on the cutting edge because of poor thermal conductivity and high work hardening. The NRS chipbreaker is engineered to promote short, controllable chips in these materials, avoiding entangling long chips and improving surface integrity. The insert’s square 90° format and 1.6 mm corner radius support robust cutting for medium to heavy turning passes, while the negative 0° relief angle helps maintain a stable shearing line when high forces are present. Where component geometry or material grade raises questions, compatibility can be evaluated with simple cutting trials supported by our technical team.

Geometry and handling that support repeatable results

The SNMG190616‑NRS WSM20S combines a compact 19 mm seat with a standard thickness code and the NRS chip control to enable reliable clamping and repeatable results in production toolholders. The 0° (negative) relief characteristic increases edge support for interrupted cuts and heavy engagement, and the square configuration gives four usable cutting edges per index, supporting economical use. The graded tolerance class M indicates machining accuracy suitable for consistent batch production. Together, these design elements make the insert suitable for workshops seeking predictable performance when machining stainless steel and other hard‑to‑cut alloys.

For application‑specific consultation or to purchase Walter Tools SNMG190616-NRS WSM20S through Metav Werkzeuge, contact info@metav-werkzeuge.com or call +49 2822 7131930 to discuss tooling setup and availability with our specialists

Technical data

• SKU: SNMG190616-NRS-WSM20S-WALTER
• Article designation: SNMG190616-NRS WSM20S
• Product type: Drehwendeschneidplatte / Turning insert
• Manufacturer: Walter Tools
• Series: Tiger·tec Silver

Facts

• Insert size: 19
• Corner radius: 1.6 mm
• Relief angle: 0° (negative)
• Thickness: 06
• Plate form: Square 90°
• Tolerance class: M

Special features

• Grade: WSM20S
• Chipbreaker: NRS
• Material suitability: stainless steel; superalloys (S / M)
• Execution: G
• Range: Tiger·tec Silver series

FAQ

What materials is this insert intended for?
The SNMG190616‑NRS WSM20S is specified for stainless steel and heat‑resistant superalloys (ISO groups M and S), where thermal stability and chip control are critical.

What advantage does the Tiger·tec Silver coating provide?
The Tiger·tec Silver system on the WSM20S grade increases wear resistance and thermal protection, extending edge life under the high temperatures typical when machining stainless steel.

When is the NRS chipbreaker the right choice?
The NRS chipbreaker on this indexable insert is suitable for medium to heavy turning where short, controlled chips and stable surface finish are required in difficult‑to‑machine alloys.

How does the square 90° geometry affect machining?
Square 90° geometry with a 1.6 mm corner radius offers strong edge support and four usable corners per insert, making it economical and robust for production turning with intermittent cuts.

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

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