DCMT11T304-MW4 WSM20S WSM20S Wendeplatten - Walter Tools

Benefit from the combination of a wear-resistant Tiger·tec Silver grade and an optimised MW4 chipbreaker for reliable machining of difficult alloys; order directly via Metav Werkzeuge or contact our advisers for application support.

DCMT11T304-MW4 WSM20S indexable turning insert — Tiger·tec Silver, MW4 chipbreaker (Walter Tools)

The DCMT11T304-MW4 WSM20S is a rhombic 55° indexable turning insert engineered for secure cutting in stainless steel and high-temperature alloys, offering a fine 0.4 mm corner radius and a 7° relief angle for improved surface quality.

• Tiger·tec Silver coating for demanding materials
• Optimised MW4 chipbreaker for stable chips
• 0.4 mm corner radius for good edge life
• 7° relief angle for consistent cutting

Consistent performance on difficult materials

The combination of the WSM20S grade and Tiger·tec Silver coating targets stainless steel and heat‑resistant superalloys, delivering improved resistance to thermal and mechanical wear. The coated carbide chemistry is developed to maintain a stable cutting edge where adhesion and built-up edge would otherwise shorten tool life. This results in fewer interruptions, reduced regrinding and a more predictable production flow — a clear rational advantage for machining centres processing tough workpiece materials.

Geometry that improves surface finish and chip control

The rhombic 55° form with a 0.4 mm corner radius and 7° relief angle supports fine finishing cuts while preserving edge strength during tougher operations. The MW4 chipbreaker is shaped to produce controllable, medium-length chips in interrupted or continuous turning, reducing the risk of chip entanglement and improving process reliability. For operators less familiar with chipforming terminology, the chipbreaker is the engineered groove on the insert that controls chip shape and evacuation, directly influencing surface quality and machine uptime.

Practical benefits for production and tool management

Using a grade from the Tiger·tec Silver family brings measurable efficiency: improved edge stability lowers the frequency of insert changes and contributes to a consistent surface finish across batches. The insert’s designation and tolerance class support repeatable toolholding and easy re‑indexing in standard toolholders. For workshop planners, this means predictable cycle times and less variability in finished parts — a rational argument that supports investment in higher‑performance grades for challenging materials.

Discuss machining trials and grade selection with Metav Werkzeuge to ensure optimal process security for stainless steel and superalloys — contact Metav Werkzeuge by e‑mail at info@metav-werkzeuge.com or by phone at +49 2822 7131930

Technical data

• Article number: DCMT11T304-MW4-WSM20S-WALTER
• Designation: DCMT11T304-MW4
• ISO designation: DCMT11T304-MW4 WSM20S
• Manufacturer: Walter Tools
• Series: Tiger·tec Silver
• Grade: WSM20S
• Chipbreaker: MW4
• Plate form: Rhombus 55°
• Plate size: 11
• Thickness: T3
• Corner radius: 0,4
• Relief angle: 7°
• Tolerance class: M

Core data

• Size designation: 11
• Corner radius: 0.4 mm
• Relief angle: 7°
• Thickness: T3
• Tolerance class: M

Special features

• Coating technology: Tiger·tec Silver
• Grade type: WSM20S (coated carbide)
• Chip control: MW4 chipbreaker
• Geometry: Rhombic 55° insert form
• Material groups: S / M
• Suitable for: stainless steel and high-temperature superalloys

FAQ

What materials can be machined with this insert?
The DCMT11T304-MW4 WSM20S insert is designed for stainless steel and heat‑resistant superalloys (ISO groups M and S) thanks to the WSM20S grade and Tiger·tec Silver coating.

How does the MW4 chipbreaker affect machining?
The MW4 chipbreaker shapes medium‑length chips for reliable evacuation and consistent cutting forces, improving surface finish and reducing chip-related interruptions with this Walter Tools insert.

Is the corner radius suitable for finishing operations?
Yes, the 0.4 mm corner radius provides a balance between edge strength and fine surface quality, making the insert appropriate for finishing and semi‑finishing cuts.

Which insert geometry suits interrupted cuts and general turning?
The rhombic 55° form offers versatile cutting directions and good access in turning operations; combined with the 7° relief angle, it supports stable cutting in demanding workpiece materials.

What does the WSM20S designation mean for tool life?
WSM20S, as part of the Tiger·tec Silver family, is optimised for thermal stability and wear resistance, contributing to longer edge life and more predictable tool performance in difficult alloys.

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

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