DCMT070204-FM4 WSM20S WSM20S Wendeplatten - Walter Tools

Take advantage of a wear-resistant Tiger·tec Silver grade and a secure FM4 chipbreaker to maintain stable cutting in demanding turning operations; the combination of a Rhombus 55° geometry and a 0.4 mm corner radius supports precise finishes on tough alloys. Order the original insert directly via Metav Werkzeuge or consult their team for process-specific advice.

DCMT070204-FM4 WSM20S turning insert — Rhombus 55°, FM4 chipbreaker (Walter Tools)

The DCMT070204-FM4 WSM20S is an indexable turning insert with a rhombic 55° form, engineered for robust performance in rostfreier Stahl and heat-resistant alloys

• Tiger·tec Silver coating performance
• Optimised FM4 chip control
• Rhombus 55° for versatile turning
• Suitable for rostfreier Stahl and superalloys

Coating and grade that extend tool life and process reliability

The combination of the Tiger·tec Silver series and the WSM20S grade provides a coating system designed to reduce wear and support a stable cutting edge when machining difficult-to-cut materials. This coated cemented carbide grade is formulated for applications involving high heat generation and adhesive tendencies; the result is improved edge stability and longer usable life compared with uncoated alternatives. For production environments where repeatability and minimal downtime matter, the coating’s thermal resilience contributes directly to fewer tool changes and consistent component quality.

Geometry and chip control that improve surface finish and safety

A Rhombus 55° shape with a 0.4 mm corner radius and a 7° clearance angle yields a balance between robustness and accessibility in a range of turning tasks. The FM4 chipbreaker is shaped to generate predictable chip forms and to prevent long, entangling chips, which reduces the risk of machine interruptions and improves operator safety. This geometry supports fine finishing passes as well as stable roughing, enabling better surface integrity on the workpiece while maintaining cutting forces within manageable limits.

Tailored for rostfreier Stahl and heat-resistant superalloys

This insert’s specification targets materials classified under ISO group M (rostfreier Stahl) and S (heat-resistant superalloys and titanium). The grade composition and chip control are chosen to address the common issues of these groups — adhesion, poor thermal conductivity and high cutting temperatures. In practice, the insert enables more predictable machining windows, helping to protect the cutting edge during steep thermal and mechanical loading. For workshops that require consistent batch-to-batch performance, the result is higher first-pass yield and reduced rework.

Practical advantages for production and tool management

Using an insert from the Tiger·tec Silver family with the FM4 chipbreaker supports efficient tool management through extended tool life and reliable process behaviour. The standardised rhombic format simplifies indexable insert stocking and replacement, while the tolerance class M indicates the precision level expected from the component. These attributes together underpin cost-effectiveness in the longer term: fewer tool changes, predictable maintenance intervals and improved machine uptime. For engineering teams focused on productivity and quality, this insert is a pragmatic choice within a controlled machining strategy.

Contact Metav Werkzeuge for a process evaluation and tailored recommendations for Walter Tools inserts, including guidance for rostfreier Stahl machining; email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: DCMT070204-FM4-WSM20S-WALTER
• Designation: DCMT070204-FM4 WSM20S
• Manufacturer: Walter Tools

Core specifications

• Free cutting angle: 7°
• Corner radius: 0.4 mm
• Plate form: Rhombus 55°
• Plate size: 07
• Thickness: 02
• Tolerance class: M

Features

• Series: Tiger·tec Silver
• Grade: WSM20S
• Chipbreaker: FM4
• Execution: T
• Material group: S / M
• Suitable for rostfreier Stahl
• Suitable for heat-resistant superalloys and titanium

FAQ

What materials is this insert suitable for?
The DCMT070204-FM4 WSM20S from Walter Tools is suitable for rostfreier Stahl and heat-resistant superalloys, reflecting the grade’s focus on thermal resistance and stable chip formation.

How does the FM4 chipbreaker affect machining?
The FM4 chipbreaker on this Walter Tools insert produces controlled chip forms that reduce entanglement and support uninterrupted cutting cycles, improving process reliability.

What does the 0.4 mm corner radius mean for surface finish?
A 0.4 mm corner radius gives improved edge strength for finishing passes while enabling consistent surface quality on turned components when using the DCMT070204-FM4 WSM20S insert.

Is this insert part of a larger system for tool management?
Yes; the insert belongs to the Tiger·tec Silver series, which is designed for predictable performance and straightforward integration into standard indexable tooling systems from Walter Tools.

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

Protected trademarks and trade names are the property of their respective owners. Brand names and protected designations are used for explanatory purposes only and do not imply any affiliation between Metav Werkzeuge and the brand owner. The offered article is an original factory-new product of the manufacturer.