WNMG080408-NRS WSM20S WSM20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating, a Trigon 80° geometry and the NRS chipbreaker for stable chip control and extended edge life when machining stainless steel and heat‑resistant superalloys; order directly via Metav Werkzeuge or consult the advisors for cutting data and tool recommendations.

WNMG080408-NRS WSM20S turning insert — Trigon 80°, Tiger·tec Silver (Walter Tools)

WNMG080408-NRS WSM20S is a trigon‑form indexable turning insert engineered for heavy machining of stainless steel and heat‑resistant superalloys.

• Tiger·tec Silver coating for edge stability
• Suitable for stainless steel and superalloys
• Trigon 80° form with 0.8 mm corner radius
• NRS chipbreaker for controlled chip formation

Greater process stability with coated carbide technology

The coated carbide design, identified by the WSM20S grade, combines a wear‑resistant substrate with the Tiger·tec Silver multilayer coating to reduce flank wear and crater formation under high thermal load. For production environments handling tough materials, this results in more consistent tool life and fewer unexpected interruptions. The insert’s geometry and coating work together to support secure chip formation, helping maintain steady cycle times and predictable tool replacement intervals.

Reliable surface quality through optimised geometry

A Trigon 80° profile with a 0.8 mm corner radius provides a balance between strength at the cutting edge and achievable surface finish. The slightly negative clearance (0° negative) and the robust tip radius make the insert suitable for interrupted cuts and operations where edge robustness is critical. As a consequence, process engineers can expect improved dimensional reliability and a reduced need for secondary finishing on components made from stainless steel and similar materials.

Efficient chip control lowers machine downtime

The NRS chipbreaker has been developed to manage chip flow in difficult‑to‑cut materials, producing short, controllable chips that evacuate reliably from the cutting zone. Better chip control reduces toolholder interference and minimises manual chip handling, which supports safer, more efficient machining cycles. Combined with the insert’s trigon form, the chipbreaker helps maintain stable cutting forces and consistent heat distribution along the cutting edge.

Versatility for demanding material groups

Classified for the ISO material groups M and S, the insert addresses stainless steel (group M) and heat‑resistant superalloys and titanium (group S). The WSM20S grade is formulated to tolerate elevated temperatures and to preserve a sharp, productive cutting edge under challenging thermal and mechanical conditions. This versatility makes the insert suitable for a wide range of engineering and industrial turning tasks where durability and repeatability are priorities.

Contact Metav Werkzeuge for tailored cutting data, availability and rapid delivery of the Walter Tools WNMG080408-NRS WSM20S with Tiger·tec Silver coating — info@metav-werkzeuge.com / +49 2822 7131930

Technical data

• Article number: WNMG080408-NRS-WSM20S-WALTER
• Designation: WNMG080408-NRS WSM20S
• Manufacturer: Walter Tools
• Product type: turning insert

Facts

• Size code: 08
• Thickness code: 04
• Corner radius: 0.8 mm
• Clearance angle: 0° (negative)
• Plate form angle: 80°
• Tolerance class: M

Special features

• Grade: WSM20S (coated carbide)
• Coating technology: Tiger·tec Silver
• Chipbreaker: NRS
• Suitable material groups: M (stainless steel), S (superalloys / titanium)
• Series: Tiger‑tec Silver
• Version: G

FAQ

What materials is this insert designed for?
The WNMG080408-NRS WSM20S is specified for ISO groups M and S, making it suitable for stainless steel and heat‑resistant superalloys or titanium where high thermal load and tough cutting conditions occur.

What are the key geometry features and their benefits?
The trigon 80° form with a 0.8 mm corner radius and a 0° negative clearance angle gives a robust cutting edge that tolerates interrupted cuts while maintaining acceptable surface quality for heavy turning.

Which coating and grade are used and why do they matter?
This insert uses the WSM20S grade within the Tiger·tec Silver coating system; the combination improves wear resistance and edge stability under the high temperatures typical of machining stainless steel and superalloys.

How does the NRS chipbreaker affect performance?
The NRS chipbreaker delivers consistent, short chips that evacuate reliably, reducing the risk of chip entanglement and supporting smoother, safer machining cycles when working with tough materials.

Is the insert suited for finishing or roughing operations?
The robust geometry and corner radius make this insert primarily suited to medium to heavy machining and roughing in demanding materials; certain fine finishing tasks are possible depending on cutting parameters and holder setup.

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