WNMG080408-FW5 WSM20S WSM20S Wendeplatten - Walter Tools

Benefit from the combination of the Tiger·tec Silver coating and a robust trigon geometry for secure chip formation and extended tool life; the insert delivers reliable performance on stainless steels and heat‑resistant superalloys. Order the insert directly via Metav Werkzeuge or request application support from the consultants for optimised machining results.

WNMG080408-FW5 WSM20S turning indexable insert by Walter Tools — Tiger·tec Silver, Trigon 80°

WNMG080408-FW5 WSM20S is a trigon insert designed for demanding turning applications, optimised for machining stainless steels and heat‑resistant superalloys where edge stability and temperature resistance are essential

• Tiger·tec Silver coating for heat resistance
• Trigon 80° geometry for strong edge strength
• FW5 chipbreaker for controlled chips
• 0° negative clearance for stable cutting

High thermal stability for tough materials

The coated carbide grade from the Tiger·tec Silver family combines a temperature‑resistant surface layer with a mechanically robust substrate to maintain the cutting edge under heavy thermal load. This formulation supports a stable cutting process when tackling stainless steels and superalloys, materials that tend to generate heat and strain the tool. The result is predictable wear behaviour and fewer unplanned tool changes, which supports higher machine uptime and a consistent surface finish on workpieces.

Geometry engineered for secure cutting and chip control

The Trigon 80° form and FW5 chipbreaker are tuned to provide a short, segmented chip for turning operations that require controlled evacuation. The trigon shape increases insert strength at the cutting edge, reducing the risk of chipping during interrupted cuts or tough feed conditions. With the 0° negative clearance, the insert offers a compact shear zone that helps stabilise the cut and preserves the edge during demanding passes, improving process reliability in continuous production.

Application benefits and productivity gains

Thanks to the WSM20S grade, the insert is particularly suitable where heat resistance and edge integrity determine cycle times and cost‑efficiency. Using this insert can extend tool life in difficult materials, reduce scrap caused by edge failure and allow more aggressive cutting parameters compared with standard uncoated grades. The combination of coating technology and geometrical design supports improved metal removal rates and reduced process variance for serial production.

Practical use and process advice

For best results, pair the insert with a rigid toolholder and steady clamping to exploit the edge stability of the trigon geometry. The FW5 chipbreaker performs well in medium to heavy feeds; lighter feeds benefit from adjusted feed rates to avoid built‑up edge on some stainless grades. Where groove or interrupted cuts occur, the robust corner radius and negative clearance reduce the chance of edge breakage and support repeatable component tolerance.

For machining tasks demanding heat resistance and stable edge life, contact Metav Werkzeuge for tailored recommendations and to procure Walter Tools Tiger·tec Silver inserts; Metav Werkzeuge can provide application advice and delivery arrangements.

Technical Data

• SKU: WNMG080408-FW5-WSM20S-WALTER
• Article designation: WNMG080408-FW5
• Grade / Sort: WSM20S
• Series: Tiger·tec Silver
• Product type: Turning indexable insert

Numbers / Facts

• Corner radius: 0.8 mm
• Clearance: 0° (negative)
• Plate form: Trigon 80°
• Plate size: 08
• Plate thickness: 04
• Tolerance class: M
• Execution: G

Special features / Versions

• Coating: Tiger·tec Silver
• Chipbreaker: FW5
• Material suitability: S / M (superalloys/titanium and stainless steels)
• Brand: Walter Tools
• Application: Heavy‑duty turning, interrupted cuts, stainless and heat‑resistant alloys

FAQ

What materials are best suited to this insert?
The WNMG080408-FW5 WSM20S insert is intended primarily for stainless steels and heat‑resistant superalloys (ISO groups M and S), offering thermal stability and secure chip formation in these alloys.

How does the Tiger·tec Silver coating help performance?
The Tiger·tec Silver coating increases heat resistance and protects the cutting edge, which leads to longer tool life and more consistent results when machining high‑temperature‑sensitive materials.

Is the trigon geometry beneficial for interrupted cuts?
Yes, the Trigon 80° geometry provides enhanced edge strength and the robust corner radius reduces the likelihood of chipping during interrupted or unstable cuts.

Which chipbreaker suits general turning tasks?
The FW5 chipbreaker delivers controlled, short chips suitable for medium to heavy feeds and supports reliable chip evacuation in many turning operations.

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

The Walter AG (brand presentation: Walter Tools) with headquarters in Tübingen is among the world’s leading manufacturers of precision cutting tools and is part of the Sandvik Group. Protected trademarks and product names mentioned are the property of their respective owners and are used for explanation only. There is no affiliation between our company and the mentioned brands. The item offered is an original, factory‑new product of the manufacturer.