SNMG120408-NRS WSM30S WSM30S Wendeplatten - Walter Tools

Take advantage of the combination of high process security, stable chip formation and robust edge life for consistent turning results in stainless steel and heat‑resistant alloys; order the insert directly via Metav Werkzeuge or consult the technical advisors for application-specific recommendations.

SNMG120408-NRS WSM30S — indexable turning insert, Tiger·tec Silver grade, Walter Tools

SNMG120408-NRS WSM30S is an indexable turning insert optimised for secure chip control and stable cutting performance in stainless steel and heat‑resistant superalloys.

• Tiger·tec Silver coated grade WSM30S
• Optimised NRS chip control
• Square 90° geometry for robust cutting
• Negative 0° rake for heavy cuts

High‑performance grade for difficult materials

The WSM30S grade from the Tiger·tec Silver family is a coated carbide solution developed for machining demanding materials. Its design supports stable cutting edges and improved wear resistance when tackling stainless steel and heat‑resistant superalloys. By combining a heat‑resistant coating with a substrate optimised for edge stability, this insert reduces the tendency for build‑up and extends tool life under thermally hostile conditions. The result is higher uptime and fewer index changes in series production.

Reliable chip control and edge stability

Equipped with the NRS chipbreaker, the insert offers predictable chip formation even under heavy feed and interrupted cuts. The NRS geometry is tuned to produce short, controlled chips that evacuate consistently, lowering the risk of re‑cutting and improving surface finish. The negative 0° rake contributes to a robust cutting edge that withstands shock and allows higher depth of cut, translating into improved productivity on demanding turning tasks.

Practical geometry for industrial turning

The square 90° geometry and a corner radius of 0.8 mm provide a balance between strength and finish capability. A square form offers four usable corners, increasing index life per insert and supporting applications where stable seat and high radial force tolerance are required. Thickness and seat stability support secure clamping, enabling reliable repeatability in automated machining environments and ensuring consistent component tolerances.

Process benefits and recommended uses

In applications involving stainless steel and superalloys, the combination of Tiger·tec Silver coating and the WSM30S carbide grade improves thermal management at the cutting zone and stabilises the cutting edge against crater and flank wear. This makes the insert a suitable choice for finishing and medium‑duty roughing passes where surface integrity and tool life are priorities. For optimised results, pairing the insert with appropriate cutting parameters and stable tooling systems enhances these benefits further.

Contact Metav Werkzeuge for tailored process advice on Walter Tools SNMG120408-NRS WSM30S, eMail: info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: SNMG120408-NRS-WSM30S-WALTER
• Name: SNMG120408-NRS WSM30S
• Manufacturer: Walter Tools
• Grade: WSM30S
• Series: Tiger·tec Silver

Numbers / Core technical data

• Plate size: 12 mm
• Corner radius: 0.8 mm
• Plate thickness: 4.0 mm
• Free angle: 0° (negative)
• Tolerance class: M

Designs / Special features

• Coated carbide (Tiger·tec Silver)
• Chipbreaker: NRS
• Plate form: Square 90°
• Negative rake (0°)
• Suitable for stainless steel and heat‑resistant superalloys (ISO groups M and S)
• Execution: G

FAQ

Which materials are best machined with this insert?
The SNMG120408-NRS WSM30S insert is designed primarily for stainless steel (ISO group M) and heat‑resistant superalloys and titanium (ISO group S), offering improved wear resistance and secure chip control in these materials.

What does the Tiger·tec Silver designation mean?
Tiger·tec Silver denotes a specialised coating and substrate combination that enhances thermal resistance and edge stability on the SNMG120408-NRS WSM30S, supporting longer tool life under elevated cutting temperatures.

How does the NRS chipbreaker affect machining?
The NRS chipbreaker on this insert produces short, controllable chips and reduces the risk of entanglement and re‑cutting, improving surface finish and process reliability during turning operations.

Is the insert suitable for heavy cutting?
The negative 0° rake and square 90° geometry give the insert high edge strength, making it suitable for heavier cuts and interrupted cutting where a robust cutting edge and stable clamping are required.

What corner radius should be selected for fine finishing?
For finer finishes, a smaller corner radius is generally preferable; the SNMG120408-NRS WSM30S comes with a 0.8 mm corner radius, offering a compromise between edge strength and surface quality for semi‑finishing and finishing tasks.

Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen, Germany

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