SNMG120412-NRT WSM20S WSM20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating, the WSM20S grade and the NRT chipbreaker for reliable chip control and extended edge life when machining stainless steel and heat‑resistant alloys; order the insert directly via Metav Werkzeuge or consult the team for application advice.

SNMG120412-NRT WSM20S – Turning insert, Tiger·tec Silver grade, for stainless steel by Walter Tools

The SNMG120412-NRT WSM20S is a negative‑rake, square‑format turning insert engineered for secure chip control and stable cutting when machining stainless steel and other difficult‑to‑cut alloys.

• Tiger·tec Silver coated grade WSM20S
• Square 90° insert with 1.2 mm corner radius
• NRT chipbreaker for stable chip formation
• Negative 0° rake for robust engagement

Consistent chip control for demanding materials

The combination of a dedicated NRT chipbreaker and the WSM20S coated grade delivers consistent chip formation under challenging conditions. Designed particularly for stainless steel and superalloys, this insert supports predictable chip flow and reduces the risk of built‑up edge. The negative 0° rake geometry increases edge robustness during interruptions and hardening variations in the workpiece, helping to maintain process stability and reduce unplanned downtime. Such stability is especially valuable in continuous production environments where reproducible results are essential.

Extended edge life and thermal resistance

The Tiger·tec Silver coating provides a balance of thermal protection and wear resistance that is beneficial when turning heat‑sensitive materials. The coating technology, combined with the tungsten‑based WSM20S carbide grade, helps the cutting edge resist degradation from high temperatures and adhesive wear. A defined 1.2 mm corner radius improves edge strength and distributes cutting forces, which can lead to fewer insert changes and longer intervals between tool inspections — a clear operational advantage for batch production and serial machining of stainless steel components.

Geometry and handling that simplify setup

The square 90° plate form and the standard SNMG designation make the insert compatible with a wide range of tool holders and clamping systems used in turning operations. With a plate size of 12 mm and a thickness indicated by the standard code, the insert sits securely in the pocket, while the NRT chipbreaker helps maintain short, controllable chips for automated and manual operations alike. These characteristics support a straightforward setup process and predictable cutting behaviour, which in turn reduces setup time and contributes to throughput efficiency.

Contact Metav Werkzeuge today for tailored recommendations on cutting data and holder selection for optimal performance with this Walter Tools insert

Technical data

• Article number: SNMG120412-NRT-WSM20S-WALTER
• Designation: SNMG120412-NRT WSM20S
• Manufacturer: Walter Tools
• Series: Tiger-tec Silver

Facts

• Shape: Square 90°
• Corner radius: 1.2 mm
• Size: 12
• Rake angle: 0° (negative)
• Tolerance class: M

Special features

• Grade: WSM20S
• Coating: Tiger·tec Silver
• Chipbreaker: NRT
• Suitable for: stainless steel, heat‑resistant superalloys and titanium (S)
• Plate thickness code: 04

FAQ

What materials are suitable for this insert?
The SNMG120412-NRT WSM20S insert from Walter Tools is intended primarily for stainless steel and is also suitable for heat‑resistant superalloys and titanium when the geometry and cutting data are adapted.

How does the NRT chipbreaker benefit production?
The NRT chipbreaker on this insert promotes stable, short chip formation and reduces chip‑related interruptions, improving process reliability during turning of stainless steel and similar materials.

Is the insert compatible with standard SNMG tool holders?
Yes, the SNMG120412-NRT designation corresponds to standard square SNMG holders; correct clamping and orientation ensure accurate seat and secure engagement.

What operational advantage does the 1.2 mm corner radius provide?
A 1.2 mm corner radius increases edge strength and load distribution, which helps resist chipping and extend tool life under interrupted cuts or variable material conditions.

Does the Tiger·tec Silver coating improve thermal performance?
The Tiger·tec Silver coating enhances thermal and wear resistance compared with uncoated grades, contributing to improved edge retention when machining materials that generate high heat.

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