DCMT070204-MM4 WMP20S WMP20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating and the MM4 chipbreaker for dependable machining of stainless steels; precise geometry ensures stable cutting and predictable chip control. Order the DCMT070204-MM4 WMP20S indexable insert directly via Metav Werkzeuge or consult the Metav advisors for application-specific recommendations.

DCMT070204-MM4 WMP20S – Indexable turning insert for stainless steels, Rhombic 55° | Walter Tools

The DCMT070204-MM4 WMP20S is a rhombic 55° indexable turning insert designed for secure chip formation and reliable performance when machining stainless steels under medium to robust conditions.

• Tiger·tec Silver coating for long tool life
• Optimised MM4 chipbreaker for stainless steel
• 7° relief angle for secure chip control
• Rhombic 55° form with 0.4 mm corner radius

Efficient machining of stainless steels with fewer interruptions

The combination of the Tiger·tec Silver coating and the insert’s dedicated geometry reduces friction and supports a stable cutting edge when machining stainless steels. The coated cemented carbide grade, designed for the M material group, improves tool life and resistance to work-hardening tendencies common in austenitic stainless grades. By promoting predictable heat management and secure chip formation, this insert helps maintain cycle times and reduces the need for unscheduled tool changes — a direct advantage for production-oriented turning operations.

Predictable chip control and consistent cutting performance

Equipped with the MM4 chipbreaker and a modest 7° relief angle, the insert delivers controlled chip breaking and evacuation in continuous and interrupted cuts. The chipformer geometry is engineered to avoid built-up edge and to produce short, manageable chips when cutting ductile stainless steels, which in turn increases machining stability and reduces thermal loading on the tool. These characteristics translate into more consistent surface finish and fewer process deviations during longer production runs.

Precision geometry for repeatable dimensions and surface quality

The Rhombic 55° insert shape combined with a 0.4 mm corner radius provides a balance between robustness and accuracy: the geometry supports a defined cutting edge for repeatable part tolerances while the corner radius helps absorb cutting forces without compromising surface integrity. The compact size designation (size 07) is suitable for a wide range of toolholders and setups, enabling straightforward integration into existing turning fixtures and minimising setup complexity.

Proven brand engineering for reliable workshop performance

As a product from Walter Tools, this insert benefits from engineering focused on stable cutting-edge formation and predictable tool behaviour. The proven material and coating choices aim to deliver process security across variable stainless-steel grades, supporting higher productivity and consistent results. For procurement teams seeking to standardise on robust inserts for demanding M-group applications, this grade offers a pragmatic mix of economy and performance.

Contact Metav Werkzeuge for tailored selection advice on Walter Tools DCMT070204-MM4 WMP20S and to discuss optimised insert inventories for stainless-steel turning applications

Technical Data

• SKU: DCMT070204-MM4-WMP20S-WALTER
• Article designation: DCMT070204-MM4 WMP20S
• Label: Drehwendeschneidplatte DCMT070204-MM4 WMP20S Walter Tools
• Manufacturer: Walter Tools

Facts

• Relief angle: 7°
• Corner radius: 0.4 mm
• Insert form: Rhombus 55°
• Size designation: 07
• Thickness designation: 02
• Tolerance class: M
• Suitable material group: M (stainless steels)

Special features

• Series: Tiger·tec Silver
• Grade/sort: WMP20S (coated cemented carbide)
• Chipbreaker: MM4
• Application focus: Machining of stainless steels under medium to robust conditions
• Series/grade description: WMP20S is a Walter grade optimised for secure chip formation and stable cutting edges on stainless steels

FAQ

What materials is this insert intended for?
The DCMT070204-MM4 WMP20S insert is intended primarily for stainless steels (material group M), where the grade and geometry support secure chip formation.

How does the MM4 chipbreaker benefit turning operations?
The MM4 chipbreaker on this Walter Tools insert promotes predictable chip breaking and evacuation, which reduces the risk of built-up edge and supports consistent surface quality in stainless-steel turning.

What is the advantage of the Rhombic 55° shape with a 0.4 mm corner radius?
The Rhombic 55° form provides a versatile cutting angle for turning profiles, while the 0.4 mm corner radius gives robustness against shock and helps maintain repeatable dimensional accuracy.

Is this insert compatible with standard DCMT toolholders?
The designation DCMT070204-MM4 indicates the ISO fit and size (size 07), making the insert compatible with standard toolholders designed for DCMT inserts; toolholder selection should match the insert form and size.

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

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