CNMG120408-MM5 WSM30S MM5 Wendeplatten - Walter Tools

Take advantage of the high thermal resistance and edge stability of the WSM30S grade together with the proven Tiger‑tec Silver coating for consistent chip control and long tool life; order directly via Metav Werkzeuge or contact the consultants for application advice.

CNMG120408-MM5 WSM30S – Rhombic 80° indexable turning insert by Walter Tools for rostfreier Stahl and heat‑resistant alloys

The CNMG120408-MM5 WSM30S is a rhombic 80° indexable turning insert optimised for finish and medium roughing in rostfreier Stahl and S‑group superalloys, combining a robust chipbreaker and a wear‑resistant coating for stable cutting performance

• Tiger·tec Silver coating for high temperature resistance
• WSM30S grade optimised for rostfreier Stahl
• MM5 chipbreaker for stable chip control
• Rhombic 80° geometry for versatile profiles

Boosted process stability through heat‑resistant coating and grade

The combination of the Tiger·tec Silver coating and the WSM30S grade enhances resistance to thermal degradation and supports a predictable wear pattern. This means the insert maintains a stable cutting edge under prolonged contact with hot, sticky materials such as rostfreier Stahl and high‑temperature alloys. The result is fewer unscheduled tool changes and a more consistent surface finish, which directly improves machine uptime and reduces overall part cost.

Efficient chip control and surface consistency for demanding materials

Equipped with the MM5 chipbreaker and a rhombic 80° form, the insert promotes controlled chip formation and evacuation even under higher cutting forces. For applications where built‑up edge and poor chip flow are risks, the engineered chip geometry lowers the likelihood of rework. Operators gain a measurable improvement in production reliability and a repeatable part quality without extensive parameter experimentation.

Geometry and dimensions tailored for versatile turning tasks

The insert features a corner radius of 0.8 mm and a negative 0° clearance, providing a robust edge and secure seat in negative‑geometry toolholders. The size code corresponds to a 12 mm inscribed circle, with thickness code 04 for a compact but rigid profile. These dimensions make the component suitable for a wide range of external turning operations where rigidity and edge strength are priorities.

Easy process integration and clear application scope

Specified for machining rostfreier Stahl and S‑group materials, the insert simplifies grade selection for mixed‑material production environments. The negative geometry and proven coating technology reduce the sensitivity to thermal spikes, which is particularly valuable when running variable feed rates or interrupted cuts. Technical documentation and grade data support quick parameter selection and shorter set‑up times at the machine.

For precision turning in rostfreier Stahl or superalloys, rely on the Walter Tools Tiger‑tec Silver grade WSM30S and contact Metav Werkzeuge for tailored cutting data and order handling

Technical Data

• SKU: CNMG120408-MM5-WSM30S-WALTER
• Article designation: CNMG120408-MM5
• ISO designation: CNMG120408-MM5 WSM30S
• Series: Tiger‑tec Silver

Facts

• Shape: Rhombus 80°
• Size (inscribed circle): 12
• Thickness code: 04
• Corner radius: 0.8 mm
• Clearance angle: 0° (negative)
• Tolerance class: M

Special features

• Grade: WSM30S
• Chipbreaker: MM5
• Coating technology: Tiger·tec Silver (coated cemented carbide)
• Suitable workpiece groups: rostfreier Stahl (M), superalloys/titanium (S)
• Execution: G

FAQ

What materials is this insert designed for?
The CNMG120408-MM5 WSM30S insert by Walter Tools is engineered for rostfreier Stahl and heat‑resistant superalloys (ISO groups M and S), offering enhanced edge stability and chip control for these material classes.

Which chipbreaker does the insert feature and what is its benefit?
The insert uses an MM5 chipbreaker, which promotes controlled chip formation and reliable evacuation, reducing the risk of entanglement and improving surface consistency in challenging cuts.

How does the Tiger‑tec Silver coating help in production?
Tiger‑tec Silver on the WSM30S grade increases thermal resistance and wear protection, enabling more stable tool life when machining high‑temperature materials and minimising unexpected tool wear.

Is this a positive or negative geometry insert and why does that matter?
This is a negative geometry insert with 0° clearance; the negative design provides a stronger cutting edge and greater clamping stability, making it suitable for heavier cuts and interrupted cutting conditions.

Can the insert be used for both finishing and medium roughing?
Yes, the combination of a 0.8 mm corner radius and the MM5 chipbreaker makes the insert versatile for finishing and medium roughing tasks in rostfreier Stahl and S‑group materials.

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

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