DCMT11T312-MM4 WSM20S MM4 Wendeplatten - Walter Tools

High-performance turning capability with low downtime and predictable tool life thanks to a coated-carbide grade and engineered chip control; order directly via Metav Werkzeuge or consult our specialists for application-specific recommendations.

DCMT11T312-MM4 WSM20S turning insert — Tiger·tec Silver for stainless steels & superalloys | Walter Tools

The DCMT11T312-MM4 WSM20S is a rhombic 55° indexable turning insert developed for heavy-duty machining of stainless steels and heat-resistant superalloys, offering stable cutting-edge performance in demanding turning operations.

• Tiger·tec Silver coating for extended tool life
• Optimised MM4 chipformer for stable chip control
• Rhombic 55° shape with 1.2 mm corner radius
• Specifically for stainless steels and superalloys

Reliable performance in demanding materials

The coated-carbide grade WSM20S, part of the Tiger·tec Silver series, is engineered to sustain cutting forces and thermal load when machining stainless steels and high-temperature alloys. This material combination prioritises a stable cutting edge and controlled wear, which translates into fewer tool changes and more consistent component tolerances. For production environments where repeatability matters, the insert supports predictable tool life and helps maintain cycle-time targets while reducing unplanned stoppages.

Geometry and chip control that improve productivity

The rhombic 55° geometry combined with the MM4 chipbreaker delivers a balance of positive cutting action and robust edge support. The 1.2 mm corner radius and T3 plate thickness contribute to improved edge strength under interrupted cuts and tougher feed conditions. This configuration enhances chip control, preventing stringing and ensuring chips evacuate reliably—benefits that reduce rework and protect the workpiece surface.

Process security and surface quality advantages

Rated to tolerance class M, this insert grade supports high process security in continuous production. The Tiger·tec Silver coating reduces flank wear and improves heat resistance, which helps preserve surface integrity and minimise built-up edge on stainless materials. The result is a more consistent surface finish and less variability across batches, supporting tighter quality control without sacrificing throughput.

Application guidance and material compatibility

Designed in accordance with ISO material groupings, the insert is suited to group M (rostfreie Stähle / stainless steels) and S (heat-resistant superalloys and titanium) applications, offering versatility across a range of challenging workpiece materials. For components with demanding thermal or adhesive tendencies, the WSM20S grade helps maintain edge stability and chip formation. When pairing this insert with appropriate toolholders and cutting parameters, it becomes a dependable choice for medium to heavy turning tasks in industrial production.

For reliable high-temperature machining with Walter Tools' Tiger·tec Silver inserts, contact Metav Werkzeuge for tailored application advice or to place an order via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: DCMT11T312-MM4-WSM20S-WALTER
• Type: Turning insert / indexable insert
• Manufacturer: Walter Tools
• Series: Tiger·tec Silver

Numbers / Core technical data

• Plate size: 11
• Corner radius: 1.2 mm
• Free angle: 7°
• Plate thickness: T3
• Plate form: Rhombic 55°
• Chipformer: MM4
• Tolerance class: M

Special features

• Grade: WSM20S (coated carbide)
• Suited materials: stainless steels (M), superalloys / titanium (S)
• Optimised for stable cutting edge and chip control
• Designed for heavy-duty and heat-resistant machining

FAQ

What materials is the DCMT11T312-MM4 WSM20S best suited for?
The DCMT11T312-MM4 WSM20S insert by Walter Tools is designed primarily for stainless steels (ISO group M) and heat-resistant superalloys or titanium (ISO group S), where thermal and adhesive challenges demand a heat-resistant, stable grade.

How does the MM4 chipbreaker affect machining results?
The MM4 chipbreaker on the DCMT11T312-MM4 WSM20S improves chip segmentation and evacuation, reducing the risk of long stringy chips and supporting consistent surface quality during medium to heavy turning operations.

What benefit does the Tiger·tec Silver coating provide?
The Tiger·tec Silver coating on the DCMT11T312-MM4 WSM20S enhances thermal resistance and wear protection, which extends tool life and helps maintain edge integrity under elevated cutting temperatures.

Why is the 1.2 mm corner radius important?
A 1.2 mm corner radius increases edge strength on the DCMT11T312-MM4 WSM20S, improving resistance to chipping in interrupted cuts and supporting stable dimensional control on tougher workpiece materials.

Is this insert suitable for finishing or heavy roughing applications?
The geometry and coated grade of the DCMT11T312-MM4 WSM20S make it adaptable: the rhombic 55° form and robust edge support favour heavier cutting, while appropriate feeds and speeds enable acceptable finishing results on challenging alloys.

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

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