CNMG120408-MU5 WMP20S WMP20S Wendeplatten - Walter Tools

Combining the Tiger‑tec Silver coated carbide grade with the MU5 chipbreaker ensures consistent edge stability and reliable chip control when machining stainless steels; the rhombic 80° form with a 0.8 mm corner radius and 0° negative rake supports productive turning under medium to robust conditions. Order the CNMG120408‑MU5 WMP20S directly via Metav Werkzeuge or consult the Metav team for process recommendations.

CNMG120408-MU5 WMP20S – Indexable turning insert for stainless steel, Tiger‑tec Silver (Walter Tools)

CNMG120408-MU5 WMP20S is an indexable turning insert designed for productive turning of stainless steels, featuring a coated carbide grade and a MU5 chipbreaker for controlled chip formation.

Coated carbide Tiger-tec Silver
Dedicated for stainless steel (M)
Rhombic 80° form, 0.8 mm corner
MU5 chipbreaker for reliable chips

High process reliability for stainless steel machining

The CNMG insert offers stable cutting performance through the Tiger‑tec Silver coating and a specialised carbide substrate. These properties reduce the tendency for built-up edge and support reproducible cutting results when working with stainless steel, which is prone to toughness and heat generation. The rhombic 80° geometry combined with a 0.8 mm corner radius balances strength and accessibility, enabling consistent surface quality even under intermittent or demanding cutting conditions. The MU5 chipbreaker contributes to predictable chip shape and evacuation, which supports uninterrupted cycle times and fewer interruptions for manual chip clearing.

Improved productivity through controlled chip formation and edge life

The MU5 chipbreaker and the coated grade aim to deliver secure chip control and extended tool life, reducing the frequency of tool changes and downtime. The insert’s 0° negative rake provides robustness at the cutting edge, helping to withstand higher mechanical loads during heavier cuts. This combination translates into a cost‑efficient machining process by lowering tool consumption and stabilising part quality across production runs. Where repeatability is required, the insert’s geometry and coating help maintain dimensional tolerance and surface finish consistency.

Practical application notes and process support

The insert is suited to medium to robust turning operations in the ISO M group (stainless steels). Selection of cutting data should consider the workpiece material’s specific heat and ductility; the coated carbide and MU5 chip control assist in preventing edge build‑up and in achieving regular chip shapes. For process setup and optimisation, technical consultation is available, and the insert is compatible with standard CNMG toolholders. For supplementary technical specifications or application-specific recommendations, contact the Metav Werkzeuge technical team for assistance and cutting data tailored to the material and turning process.

For process‑critical stainless steel turning choose the Walter Tools CNMG120408‑MU5 WMP20S via Metav Werkzeuge for reliable chip control and reproducible edge life; contact Metav Werkzeuge for detailed machining advice and local availability.

Technical Data

• SKU: CNMG120408-MU5-WMP20S-WALTER
• Article designation: CNMG120408-MU5 WMP20S
• Product type: Indexable turning insert (drehwendeschneidplatte)

Facts

• Inscribed circle / size: 12
• Thickness: 04
• Corner radius: 0.8 mm
• Free angle / rake: 0° (negative)
• Geometry: Rhombus 80°

Special features

• Grade / sort: WMP20S
• Coating technology: Tiger‑tec Silver
• Chipbreaker: MU5
• Material group application: stainless steel (M)
• Execution: G
• Tolerance class: M
• Manufacturer: Walter Tools

FAQ

What materials is this insert suitable for?
The CNMG120408‑MU5 WMP20S is specified for stainless steel machining (ISO group M) and is designed to manage the toughness and heat tendencies of those alloys.

How does the MU5 chipbreaker affect machining?
The MU5 chipbreaker promotes controlled chip formation and evacuation, improving process stability and reducing the risk of built‑up edge during turning with the CNMG120408‑MU5 WMP20S insert.

Which geometry and corner radius does the insert provide?
The insert uses a rhombic 80° form with a 0.8 mm corner radius, offering a balance between edge strength and access for typical turning tasks.

Is the CNMG120408‑MU5 WMP20S suitable for heavy roughing?
The negative 0° rake and robust coated carbide grade make the insert appropriate for medium to robust cutting conditions; specific parameters should be aligned with the machining strategy and workpiece properties.

Can standard CNMG holders be used with this insert?
Yes, the CNMG120408‑MU5 WMP20S conforms to standard CNMG dimensions and can be mounted in conventional CNMG toolholders; ensure correct clamping and orientation according to the holder manufacturer’s guidance.

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

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