SNMG150616-NRS WSM20S WSM20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating and the WSM20S grade for stable cutting of stainless steels and heat‑resistant alloys; order the insert directly via Metav Werkzeuge or consult our technical advisors for process matching.

SNMG150616-NRS WSM20S — indexable turning insert (for stainless steels & superalloys) by Walter Tools

A SNMG150616-NRS WSM20S indexable turning insert engineered for robust, high‑temperature performance in demanding turning operations on stainless steels and heat‑resistant superalloys.

• Tiger·tec Silver coated carbide technology
• Suitable for stainless steels and superalloys
• Negative 0° rake for stable cutting
• Square 90° insert with 1.6 mm nose radius

Consistent performance on demanding alloys

The combination of the WSM20S coated carbide and the Tiger·tec Silver coating provides high thermal resistance and controlled wear, resulting in consistent tool life when machining stainless steels and heat‑resistant alloys. The coating reduces diffusion and chemical wear at elevated temperatures, which supports a stable cutting edge and predictable regrinding intervals. In production terms, this means fewer tool changes and a more consistent surface finish on difficult‑to‑machine materials, enhancing throughput without sacrificing repeatability.

Geometry engineered for process security

The insert’s negative 0° rake and square 90° form create a mechanically robust cutting edge that resists chipping under interrupted cuts and heavy cross‑sections. The 1.6 mm nose radius balances edge strength with surface integrity, enabling secure chip formation with the NRS chipbreaker that is tuned for tight, controllable chips on tough alloys. These geometric choices reduce vibration and support reliable cutting forces, which helps maintain dimensional stability and reduces scrap rates in batch and single‑piece production alike.

Application guidance and material suitability

Designed for the machining groups indicated by ISO 513, this grade is suited to materials classified under M and S — namely stainless steels and heat‑resistant superalloys/titanium — where high temperatures and built‑up edge tendencies challenge standard grades. The NRS chipbreaker promotes consistent evacuation of small, compact chips, improving safety and machining consistency. For set‑up, select cutting parameters that favour moderate cutting speeds with appropriate coolant strategies for stainless steels and reduced heat‑transfer alloys to exploit the grade’s thermal resistance and edge stability.

For application advice or to order Walter Tools Tiger·tec Silver inserts including the SNMG150616-NRS WSM20S, contact Metav Werkzeuge by e‑mail at info@metav-werkzeuge.com or by phone on +49 2822 7131930 for personalised recommendations and availability

Technical data

• Article number: SNMG150616-NRS-WSM20S-WALTER
• Designation: SNMG150616-NRS WSM20S
• Manufacturer: Walter Tools

Facts

• Insert size: 15
• Thickness: 06
• Corner radius: 1.6 mm
• Free angle: 0° (negative)
• Tolerance class: M

Special features

• Coating: Tiger·tec Silver
• Carbide grade: WSM20S (coated carbide)
• Chipbreaker: NRS
• Shape: Square 90°
• Series: Tiger‑tec Silver
• Suitable for: stainless steels (M), heat‑resistant superalloys / titanium (S)
• Application: turning / indexable insert

FAQ

What materials is this insert suitable for?
The SNMG150616-NRS WSM20S insert is specified for ISO groups M and S, meaning it is suitable for stainless steels and heat‑resistant superalloys/titanium.

How does the Tiger·tec Silver coating benefit the cutting process?
Tiger·tec Silver on the WSM20S grade increases thermal resistance and reduces chemical wear, which helps maintain a stable cutting edge and extends useful tool life under elevated temperatures.

What is the purpose of the negative 0° rake?
A negative 0° rake enhances edge robustness and resistance to chipping, providing process security during interrupted cuts and heavy cross‑section turning with the SNMG150616-NRS geometry.

Which chip formation behaviour can be expected with the NRS chipbreaker?
The NRS chipbreaker produces short, controllable chips suited to stainless steels and superalloys, improving chip evacuation and operator safety with consistent surface results.

Is the corner radius fixed, and what surface finish does it enable?
The insert features a 1.6 mm nose radius, which is a compromise between edge strength and finish quality, supporting good surface integrity on demanding materials.

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

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