DCMT11T308-FM4 WSM20S WSM20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver wear resistance, an FM4 chipbreaker for controlled chips, and a robust 0.8 mm corner radius to improve process stability when machining rostfreier Stahl and superalloys; order directly via Metav Werkzeuge or consult our specialists for application advice

DCMT11T308-FM4 WSM20S turning insert — rhombic 55° insert for rostfreier Stahl and heat‑resistant superalloys by Walter Tools

The DCMT11T308-FM4 WSM20S is a rhombic 55° turning insert engineered for reliable machining of rostfreier Stahl and difficult-to-machine superalloys in finishing and medium‑turning operations

• Tiger·tec Silver coating for extended tool life
• FM4 chipbreaker for controlled chips and stable cutting
• Rhombic 55° geometry for flexible turning applications
• 0.8 mm corner radius for enhanced edge strength

Increased productivity through heat‑resistant grade and coating

The combination of the WSM20S grade with Tiger·tec Silver coating delivers a measurable improvement in cutting durability when working with materials that generate high temperatures. Designed for ISO groups M and S, this insert supports continuous production by reducing wear-related interruptions. The coating improves thermal resistance and friction behaviour, which together reduce cutting edge degradation and help maintain dimensional stability on critical components made from rostfreier Stahl or heat‑resistant superalloys.

Consistent chip control for safer, predictable machining

Equipped with the FM4 chipbreaker, this indexable insert promotes orderly chip formation even under the demanding conditions encountered with superalloys and rostfreier Stahl. Controlled chips lower the risk of surface damage and tool interference, which leads to fewer rework cycles and a more efficient machining process. The chip geometry works together with the insert’s rake and relief to produce shorter, manageable chips, improving both operator safety and cycle time consistency.

Versatile geometry for adaptable turning strategies

The Rhombus 55° form and a compact 11 mm size make the insert adaptable for a wide range of turning tasks, from profile finishing to light roughing where edge stability is required. The nominal clearance angle of 7° and a thickness of T3 help deliver the necessary rigidity for reproducible results, while the 0.8 mm corner radius provides a balance between strength and surface quality. These design choices support flexible tool setup and quick integration into existing toolholders and turning programmes.

Process reliability and repeatable component quality

Built to meet industrial demands, this indexable insert emphasises repeatable performance and predictable wear patterns. The WSM20S carbide chemistry and coating technology offer a stable cutting edge that helps reduce the frequency of insert changes and tool offsets. As part of Walter Tools’ portfolio, the insert benefits from production-proven standards and quality control measures that support long series runs, consistent surface finish and reduced scrap rates.

For tailored cutting data and application recommendations for Walter Tools inserts such as the DCMT11T308-FM4 WSM20S, contact Metav Werkzeuge to align parameters with specific machine and workpiece conditions

Technical data

• SKU: DCMT11T308-FM4-WSM20S-WALTER
• Product: Drehwendeschneidplatte / turning insert
• Manufacturer: Walter Tools
• Series: Tiger·tec Silver

Core specifications

• Free angle: 7°
• Corner radius: 0.8 mm
• Insert size: 11
• Thickness: T3
• Tolerance class: M

Special features

• Grade: WSM20S
• Chipbreaker: FM4
• Shape: Rhombus 55°
• Base designation: DCMT11T308-FM4
• Material suitability: S / M (rostfreier Stahl and heat‑resistant superalloys)

FAQ

Which materials is this insert suitable for?
The DCMT11T308-FM4 WSM20S turning insert from Walter Tools is formulated for ISO group M (rostfreier Stahl) and ISO group S (heat‑resistant superalloys and titanium), providing secure chip control and good thermal resistance.

What advantages does the FM4 chipbreaker provide?
The FM4 chipbreaker on this Walter Tools insert promotes short, controlled chips and improves process stability when machining tough, ductile materials, reducing surface defects and the likelihood of built‑up edge.

How does the 0.8 mm corner radius affect part quality?
A 0.8 mm corner radius increases edge robustness for longer tool life and helps maintain dimensional accuracy, while still allowing achievable surface finishes on turned components.

What does the Tiger·tec Silver series contribute to performance?
Tiger·tec Silver coating combined with the WSM20S grade enhances heat resistance and wear protection on Walter Tools inserts, which supports longer cutting intervals and consistent component quality.

Is the DCMT11T308-FM4 format compatible with standard holders?
The DCMT‑style format and Rhombus 55° geometry match common turning toolholders, enabling straightforward integration of the DCMT11T308-FM4 WSM20S insert into established setups

Manufacturer/Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen, Germany; Manufacturer brand: Walter Tools. Protected trademarks and trade names are the property of their respective owners. The mention of brand names serves explanatory purposes only and does not imply any affiliation with or endorsement by the trademark holders.