CNMG120408-MU5 WSM20S WSM20S Wendeplatten - Walter Tools

Take advantage of the combination of high thermal resistance, reliable chip control and consistent edge security for fewer tool changes and steadier cycle times; order the insert directly via Metav Werkzeuge or ask the consultants for application support.

CNMG120408-MU5 WSM20S indexable turning insert — Tiger‑tec Silver, negative 0° rake — Walter Tools

CNMG120408-MU5 WSM20S is an indexable turning insert designed for heavy‑duty machining of stainless steels and heat‑resistant superalloys, featuring a robust MU5 chipbreaker and Tiger‑tec Silver coating.

• Tiger‑tec Silver coating for heat resistance
• MU5 chipbreaker for controlled chip formation
• Rhombic 80° form with 0.8 mm corner radius
• Negative 0° rake for stable cutting edge

Durable thermal stability for demanding alloys

The coated carbide grade WSM20S within the Tiger‑tec Silver family provides enhanced thermal resistance and wear behaviour when machining tough materials. For stainless steels and heat‑resistant superalloys, temperature management at the cutting edge is critical; the coating reduces diffusion and softening of the substrate, which leads to longer tool life and fewer interruptions for insert changes. The negative rake geometry further supports a robust cutting edge, enabling more stable performance under heavy cutting loads and intermittent cutting scenarios.

Predictable chip formation and surface quality

The integrated MU5 chipbreaker is engineered to produce consistent chip shapes and evacuation even in sticky or ductile materials. Controlled chip formation decreases the risk of built‑up edge and improves surface finish on each pass. With an 80° rhombic form and 0.8 mm corner radius, the insert balances edge strength and finishing capability, reducing the need for multiple tool variants and streamlining process planning for turned components where surface integrity matters.

Geometry and handling that improve process reliability

The insert designation combines practical geometry codes with a user‑friendly mounting concept: the CNMG120408‑MU5 style gives a compact seat and stable clamp support, while the marked tolerance class M and thickness code assist in machine setup and repeatability. The 0° (negative) clearance and the plate format allow predictable cutting forces and minimise vibration in heavy cuts. For production environments seeking consistent cycle times and fewer operator interventions, this insert offers a technical route to improved throughput and repeatable machined features.

For high‑temperature and stainless‑steel turning tasks, contact Metav Werkzeuge for supply of Walter Tools Tiger‑tec Silver inserts and bespoke application advice via info@metav-werkzeuge.com or +49 2822 7131930

Technical Data

• Article number: CNMG120408-MU5-WSM20S-WALTER
• Product label: Drehwendeschneidplatte CNMG120408-MU5 WSM20S Walter Tools
• Manufacturer: Walter Tools
• Product type: Drehwendeschneidplatte
• Grade: WSM20S
• Series: Tiger‑tec Silver

Facts

• Size designation: 12
• Thickness code: 04
• Corner radius: 0.8
• Clearance angle: 0° (negative)
• Tolerance class: M

Special features

• Chipbreaker: MU5
• Plate form: Rhombus 80°
• Coating/grade technology: Tiger‑tec Silver
• Execution: G
• Material suitability: S / M

FAQ

What materials is this insert intended for?
The CNMG120408‑MU5 WSM20S insert is intended primarily for stainless steels (ISO M) and heat‑resistant superalloys (ISO S), offering thermal stability and edge integrity for these groups.

How does the MU5 chipbreaker affect machining?
The MU5 chipbreaker of the Walter Tools insert promotes consistent chip segmentation and evacuation, reducing built‑up edge and improving surface finish during stainless steel turning.

Is the insert suitable for heavy‑duty turning operations?
Yes, the negative 0° rake and robust CNMG geometry give the insert a stable cutting edge suitable for heavier cuts and intermittent machining typical in production turning.

What does the 0.8 mm corner radius mean for component finish?
A 0.8 mm corner radius offers a compromise between edge strength and surface finish, allowing improved edge life while still achieving controlled surface quality on turned parts.

Can the grade WSM20S be used for interrupted cuts?
WSM20S, with its coated carbide base and Tiger‑tec Silver characteristics, supports interrupted and demanding cuts thanks to enhanced wear resistance and stable edge behaviour.

Walter Tools: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen, Germany

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