DCMT11T304-MM4 WSM20S MM4 Wendeplatten - Walter Tools

Benefit from durable edge life, reliable chip control and a compact rhombic geometry that streamlines turning operations; order through Metav Werkzeuge or contact the consultants for application advice.

DCMT11T304-MM4 WSM20S turning insert by Walter Tools — Tiger·tec Silver, MM4 chipbreaker

The DCMT11T304-MM4 WSM20S is a rhombic 55° turning insert designed for demanding turning tasks in stainless steels and heat-resistant superalloys.

• Tiger·tec Silver coating for edge stability
• WSM20S grade for stainless and superalloys
• Rhombic 55° shape for versatile turning
• 0.4 mm corner radius for fine surface finish

Consistent edge life for demanding materials

The combination of the Tiger·tec Silver coating and the WSM20S grade delivers enhanced heat resistance and a tougher cutting edge, which is particularly important when machining stainless steels and superalloys. These materials tend to produce high cutting temperatures and can promote built-up edge; the coating reduces friction and protects the carbide substrate, resulting in more predictable tool life and fewer unscheduled tool changes. The controlled wear behaviour supports stable production cycles and predictable regrinding intervals.

Predictable chip control improves surface quality

The integrated MM4 chipbreaker is engineered for secure chip formation under challenging conditions, reducing the risk of long stringy chips and improving evacuation from the cut. Predictable chips help to avoid workpiece damage and secondary finishing, delivering a consistent surface finish with lower scrap rates. In practice, reliable chip control also reduces machine downtime caused by chip entanglement and contributes to safer, more efficient machining.

Optimised geometry for secure cutting and versatility

The Rhombic 55° form paired with a 0.4 mm corner radius and a 7° rake angle balances cutting forces and surface integrity. A smaller corner radius supports finer finishing operations and tighter dimensional control, while the chosen rake angle aids in effective shear formation when turning tough alloys. The insert’s T3 thickness and tolerance class M ensure stable clamping and repeatable positioning in compatible tool holders, which translates into reduced set-up time and consistent part quality across production batches.

Practical integration for dependable process performance

Belonging to the Tiger·tec Silver series, the insert is intended for industrial turning applications where repeatability and tool life are priorities. The grade supports machining of ISO group M (stainless) and S (heat-resistant superalloys/titanium), making it suited to job shops and production lines handling these materials. Fitting standard toolholders for the DCMT form, the insert enables seamless integration into existing tool inventories and supports efficient tool management for continuous operation.

For tailored cutting data or to check compatibility with specific tool holders, contact Metav Werkzeuge for precise recommendations on the Walter Tools DCMT11T304-MM4 WSM20S turning inserts and availability via info@metav-werkzeuge.com or +49 2822 7131930

Technical Data

• Article number/SKU: DCMT11T304-MM4-WSM20S-WALTER
• Label: Drehwendeschneidplatte DCMT11T304-MM4 WSM20S Walter Tools
• Product type: turning insert
• Brand: Walter Tools

Numbers / Core technical data

• Plate size: 11
• Corner radius: 0.4 mm
• Rake angle: 7°
• Plate thickness: T3
• Shape: Rhombic 55°
• Tolerance class: M

Designs / Special features

• Series: Tiger-tec Silver
• Grade: WSM20S
• Chipbreaker: MM4
• Execution: T
• Designation: DCMT11T304-MM4
• Material suitability: stainless steels (M), superalloys/titanium (S)

FAQ

Which materials is this insert suitable for?
The DCMT11T304-MM4 WSM20S insert by Walter Tools is suitable for stainless steels (ISO group M) and heat-resistant superalloys/titanium (ISO group S), as indicated by its coating and grade.

What does the MM4 chipbreaker achieve?
The MM4 chipbreaker on the DCMT11T304-MM4 promotes controlled chip formation to improve evacuation, reduce entanglement and support a consistent surface finish when machining difficult materials.

How does the 0.4 mm corner radius affect machining?
A 0.4 mm corner radius provides a balance between strength and finish: it supports edge robustness for interrupted cuts while enabling finer surface quality compared with larger radii.

Is the insert compatible with standard DCMT holders?
Yes, the DCMT11T304-MM4 style is compatible with tool holders designed for DCMT-format inserts; correct clamping and tolerance class M ensure repeatable positioning.

What advantage does the Tiger·tec Silver series provide?
Inserts from the Tiger·tec Silver series, such as this WSM20S grade, offer improved thermal resistance and abrasion properties, which together contribute to longer tool life and stable machining in high-temperature applications.

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

The Walter AG (brand: Walter Tools), headquartered in Tübingen, is one of the world’s leading manufacturers of precision tools for metalworking. Protected trademarks and product names are the property of their respective owners. The mentioned brand names are used solely for explanation; there is no affiliation between Metav Werkzeuge and the trademark owners. The offered item is an original, brand-new product of the manufacturer.