DPGT11T304-MM4 WSM20S WSM20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating and the WSM20S grade for stable cutting edges and reliable chip formation when machining stainless steel and heat-resistant alloys; secure supply and application advice via Metav Werkzeuge.

DPGT11T304-MM4 WSM20S — Turning indexable insert for stainless steel and superalloys (Tiger·tec Silver) by Walter Tools

DPGT11T304-MM4 WSM20S is an indexable turning insert designed for heavy-duty and heat-prone materials, supplying edge stability and consistent performance in precision turning applications

• Tiger·tec Silver coating for edge stability
• WSM20S grade for stainless steel and superalloys
• Rhombic 55° form with 11° relief
• MM4 chipbreaker for reliable chip control

Consistent cutting performance for demanding alloys

The DPGT11T304-MM4 WSM20S insert combines a specialised grade and coating to deliver repeatable results when machining challenging materials. The WSM20S is a coated carbide grade within Walter Tools’ Tiger·tec Silver family, engineered to resist thermal and mechanical wear. This makes the insert particularly suited for stainless steel and for heat-resistant superalloys and Titan, where high temperatures and sticky chips can shorten tool life. By improving edge stability and promoting predictable wear, the design helps maintain component tolerances and reduces unscheduled tool changes, supporting steady production throughput.

Geometry that balances strength and surface quality

The insert’s rhombic 55° form and 11° relief angle are selected to offer a reliable combination of cutting access and resistance to cutting forces. The relief angle reduces rubbing behind the cutting edge, while the 0.4 mm corner radius increases edge robustness without compromising the achievable surface finish. In practice, this geometry translates into fewer vibration-induced marks and better repeatability in turned parts. For those less familiar, the corner radius is the rounded tip of the cutting edge: a larger radius spreads forces, improving life; a smaller radius favours finer finishes—this insert strikes a practical balance for many industrial turning tasks.

Controlled chips and process security to raise productivity

Chip management is central to efficient turning of stainless steel and superalloys; the MM4 chipbreaker on this insert is tailored for secure chip formation and evacuation, reducing the risk of entangling or long, stringy chips. Combined with a T3 plate thickness that increases rigidity, the system reduces deflection under load and supports consistent cutting parameters. The result is improved chip control, longer tool life and fewer interruptions for chip clearing or premature regrinds. Backed by Walter Tools’ emphasis on process stability, the insert helps to sustain higher utilisation rates on lathes and turning centres.

Contact Metav Werkzeuge for tailored machining recommendations and to arrange supply of Walter Tools’ DPGT11T304-MM4 WSM20S inserts for specific stainless steel or superalloy applications

Technical data

• SKU: DPGT11T304-MM4-WSM20S-WALTER
• Article designation: DPGT11T304-MM4 WSM20S
• Product type: Turning indexable insert
• Manufacturer: Walter Tools

Facts

• Relief angle: 11°
• Corner radius: 0.4 mm
• Insert form: Rhombic 55°
• Insert size: 11
• Plate thickness: T3
• Tolerance class: G

Special features

• Series: Tiger·tec Silver
• Grade: WSM20S
• Chipbreaker: MM4
• Material suitability: S / M
• Designation without grade: DPGT11T304-MM4
• ISO designation: DPGT11T304-MM4 WSM20S

FAQ

Which materials is the DPGT11T304-MM4 WSM20S most suitable for?
The DPGT11T304-MM4 WSM20S insert is designed for stainless steel (ISO group M) and for heat-resistant superalloys and Titan (ISO group S), reflecting the WSM20S grade’s focus on thermal resistance and edge stability.

What benefits does the Tiger·tec Silver coating offer?
Tiger·tec Silver on the WSM20S grade reduces heat impact and improves wear resistance, allowing the insert to maintain a stable cutting edge and predictable performance during extended turning operations.

How does the 0.4 mm corner radius influence results?
A 0.4 mm corner radius provides a balance between strength and finish: it increases edge durability under load while still enabling a good surface quality on turned components when using the DPGT11T304-MM4 WSM20S.

For which machining conditions is the MM4 chipbreaker recommended?
The MM4 chipbreaker on this insert promotes controlled chip formation and evacuation in continuous and interrupted cuts, particularly when machining sticky or heat-prone materials like stainless steel and superalloys.

What does the rhombic 55° form mean for accessibility and cutting forces?
The rhombic 55° geometry gives improved tool access in turning profiles while keeping cutting forces at a manageable level; combined with the 11° relief, it supports dimensional stability and repeatable part quality.

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

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