SCGT120408-FM2 WSM20S FM2 Wendeplatten - Walter Tools

Take advantage of the proven combination of Tiger·tec Silver coating and the WSM20S grade for secure chip control and extended edge life in demanding materials; order via Metav Werkzeuge or consult its specialists for machining advice on challenging stainless and heat-resistant alloys.

SCGT120408-FM2 WSM20S square turning insert — Walter Tools, Tiger·tec Silver, FM2 chipbreaker

SCGT120408-FM2 WSM20S is a square-indexable turning insert designed for robust external and shoulder turning in difficult-to-machine materials such as stainless steels and superalloys.

Tiger·tec Silver coating for high wear resistance
Optimised chipbreaker FM2 for stable chip control
Suitable for stainless steels (M) and superalloys (S)
Square 90° insert with 0.8 mm corner radius

Consistent cutting performance in demanding alloys

The WSM20S grade, combined with the Tiger·tec Silver coating, provides a durable cutting edge that resists the heat and adhesion typical of stainless steels and heat-resistant superalloys. Coated carbide means a thin, engineered coating layer is applied to the substrate to improve wear resistance and thermal stability; this supports longer running times between index changes and reduces the risk of built-up edge that spoils surface finish. The result is a more reliable production process and predictable tool life under challenging conditions.

Geometry that balances strength and surface quality

A square 90° geometry with a 0.8 mm corner radius delivers rigidity where it matters and enables stable shoulder turning and facing operations. The relatively small corner radius helps achieve acceptable surface finish without compromising the robustness of the cutting edge. The insert’s relief angle of 7° contributes to a controlled cutting action and avoids excess rubbing on the flank. Together, these geometric features translate into consistent dimensional accuracy and reduced vibration during short overhang setups.

Chip control engineered for secure processes

The FM2 chipbreaker is optimised to form short, manageable chips in sticky or temperature-sensitive materials. Effective chip control lowers the likelihood of entanglement, reduces downtime for chip clearing and helps maintain coolant flow around the cutting zone. In combination with the coated carbide grade, the chipbreaker supports stable cutting conditions over a range of feeds and depths, improving process security in batch production or single-piece machining of high-value components.

Practical application and system integration

This insert fits standard ISO toolholders for square 90° plates and is intended for external turning and shoulder work in components made from stainless steels and nickel‑based alloys or titanium, depending on machining parameters and holder stiffness. The coated grade is particularly suitable when reliable edge stability and good wear resistance are required. For best results, pair the insert with a rigid holder and adjust cutting data to the material’s thermal and mechanical properties; Metav Werkzeuge can advise on cutting-data windows and suitable toolholder pairings.

Contact Metav Werkzeuge for tailored recommendations on Walter Tools Tiger·tec Silver inserts and request specific cutting parameter guidance for your applications.

Technical data

• Article number: SCGT120408-FM2-WSM20S-WALTER
• SKU: SCGT120408-FM2-WSM20S-WALTER
• Product: Drehwendeschneidplatte (turning insert)
• Series: Tiger·tec Silver
• Grade: WSM20S
• Manufacturer: Walter Tools

Facts

• Relief angle: 7°
• Corner radius: 0.8 mm
• Plate form: Square 90°
• Plate size: 12
• Thickness code: 04
• Tolerance class: G

Special features

• Coating: Tiger·tec Silver (coated carbide)
• Chipbreaker: FM2
• Material suitability: stainless steels (M), superalloys/titanium (S)
• Execution: T

FAQ

Is this insert suitable for machining stainless steels?
Yes. The SCGT120408-FM2 WSM20S insert from Walter Tools is specifically designed for stainless steels (ISO group M) and supports secure chip formation and improved edge life in these materials.

What does the FM2 chipbreaker offer in practice?
The FM2 chipbreaker produces short, controlled chips in sticky or heat-prone materials, reducing chip entanglement and helping to maintain steady machining conditions with the SCGT120408-FM2 WSM20S insert.

How does the 0.8 mm corner radius affect results?
A 0.8 mm corner radius offers a compromise between edge strength and surface finish: it provides a robust cutting edge for interrupted cuts and shoulders while still enabling good surface quality in normal turning operations.

Can this insert be used for titanium or nickel-based superalloys?
Yes. The WSM20S grade is indicated for ISO group S materials, which covers heat-resistant superalloys and titanium when machining parameters and holder rigidity are appropriate.

What toolholder considerations are recommended?
Use a rigid toolholder compatible with square 90° indexable inserts and ensure minimal overhang. Proper clamping and a stable setup help to exploit the coating and chipbreaker benefits of the SCGT120408-FM2 WSM20S insert.

Protected trademarks and trade names are the property of their respective owners. Brand names and protected trademarks are mentioned for explanatory purposes only. There is no affiliation between our company and the named brands. The offered item is an original, factory-new product of the manufacturer.

Manufacturer: Walter AG (brand: Walter Tools); Headquarters: Tübingen, Germany. Manufacturer/Responsible: AB Sandvik Coromant, Mossvägen 10, 811 34 Sandviken, Sweden; support.coromant@sandvik.com