DCMT11T308-MM4 WSM20S WSM20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating and the WSM20S grade for secure chip control and longer edge life; the rhombic 55° form with a 0.8 mm corner radius and 7° relief angle ensures stable cutting when machining stainless steels and high-temperature alloys. Order directly via Metav Werkzeuge or ask the consultants for material-specific recommendations.

DCMT11T308-MM4 WSM20S turning indexable insert, Tiger·tec Silver, rhombic 55° — Walter Tools

The DCMT11T308-MM4 WSM20S is a rhombic turning insert designed for reliable finishing and semi-finishing of stainless steels and heat-resistant superalloys, offering a balance of thermal stability and chip control.

• Tiger·tec Silver coating for thermal stability
• Optimised MM4 chipbreaker for secure chip control
• Rhombic 55° shape with 0.8 mm corner radius
• 7° relief angle for reliable cutting edge support

High thermal resistance for difficult materials

The coated carbide grade and the Tiger·tec Silver technology provide high thermal stability, which reduces edge wear when machining materials that generate heat. For operations in the ISO groups M and S, the WSM20S grade supports secure chip formation and helps prevent build-up on the cutting edge. The combination of coating and substrate improves consistency in batch production, delivering reproducible results across workpieces and reducing the need for frequent index changes. This leads to more predictable cycle times and fewer unscheduled stoppages.

Stable geometry for repeatable surface quality

A rhombic 55° cutting form with a 0.8 mm corner radius and a 7° relief angle yields a stable contact geometry that maintains cutting-edge integrity under varying cutting conditions. The MM4 chipbreaker is engineered to produce short, controllable chips in tougher steels and superalloys, which improves swarf evacuation and minimises the risk of re-cutting. The net effect is a reliable surface finish and reduced rework, particularly important in high-precision turning where dimensional consistency matters.

Practical advantages in production environments

The insert thickness designation T3 and the standard 11 size enable straightforward integration into common toolholders and turret systems, maintaining setup simplicity in busy workshops. The grade’s suitability for stainless steels and heat-resistant alloys means fewer tool changes across mixed-material batches, enhancing throughput. Where process security and consistent tool life are key, the coated grade supports longer intervals between indexings, which contributes to lower tooling costs per part and a more efficient production flow.

Contact Metav Werkzeuge for application advice and fast supply of Walter Tools DCMT11T308-MM4 WSM20S inserts — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• SKU: DCMT11T308-MM4-WSM20S-WALTER
• Designation: DCMT11T308-MM4 WSM20S
• Manufacturer: Walter Tools

Facts

• Shape: Rhombic 55°
• Size: 11
• Corner radius: 0.8 mm
• Relief angle: 7°
• Thickness: T3
• Chipbreaker: MM4

Special features

• Coating/series: Tiger·tec Silver
• Grade/sort: WSM20S (coated carbide)
• Material suitability: stainless steels (M), heat-resistant superalloys / titanium (S)
• Application: finishing and semi-finishing, secure chip control

FAQ

What materials is this insert best suited for?
The WSM20S grade is optimised for stainless steels and heat-resistant superalloys (ISO groups M and S), offering thermal stability and controlled chip formation for these materials.

How does the MM4 chipbreaker affect machining?
The MM4 chipbreaker on this insert promotes short, manageable chips that improve evacuation and reduce the risk of workpiece damage during turning operations.

Can this insert be used for both finishing and semi-finishing?
Yes, the rhombic 55° geometry combined with a 0.8 mm corner radius makes the insert suitable for finishing and semi-finishing applications where surface quality and dimensional control are required.

What benefit does the Tiger·tec Silver coating provide?
The Tiger·tec Silver coating increases thermal resistance and wear protection, contributing to longer edge life and greater process reliability when turning demanding alloys.

Is the DCMT11T308-MM4 WSM20S compatible with standard toolholders?
The insert follows common industry dimensions for rhombic 55° plates and is compatible with matching toolholders specified for this format.

Manufacturer: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen; Germany. The Walter AG (brand: Walter Tools) is a leading provider of precision metalworking tools and is part of the Sandvik group. Protected trademarks and brand names mentioned are the property of their respective owners and are used solely for descriptive purposes. There is no affiliation between our company and the named manufacturers; the offered item is original and new from the manufacturer.