CNMG120408-MM5 WMP30G WMP30G Wendeplatten - Walter Tools

Take advantage of a proven cutting grade and robust geometry to keep turning operations reliable and productive; the combination of Tiger·tec Gold coating and the WMP30G grade supports stable chip formation and long edge life in stainless steel. Order the CNMG120408-MM5 WMP30G turning insert directly via Metav Werkzeuge or contact our consultants for application-specific advice.

CNMG120408-MM5 WMP30G turning insert — Tiger·tec Gold grade for stainless steel, rhombic 80° by Walter Tools

The CNMG120408-MM5 WMP30G is a coated carbide turning insert designed for medium to robust machining of stainless steel, combining an MM5 chipbreaker with a 0.8 mm corner radius for reliable chip control and edge stability.

• Tiger·tec Gold coated carbide grade WMP30G
• Optimised for stainless steel machining
• Rhombic 80° insert with 0.8 mm corner radius
• MM5 chipbreaker for stable chip control

Reliable process performance for stainless steel turning

The combination of the WMP30G grade and Tiger·tec Gold coating has been developed to manage the specific challenges of stainless steel: material toughness, tendency for built-up edge and elevated cutting temperatures. The coated carbide chemistry supports secure chip formation and maintains a stable cutting edge over repeated cycles, which translates into fewer interruptions and more consistent component quality. The insert’s negative relief (0°) increases edge strength under intermittent or interrupted cuts, helping to protect the cutting edge during medium to robust turning operations.

Consistent surface finish and tool life through geometry and chip control

The rhombic 80° shape and 0.8 mm corner radius offer a balanced compromise between strength and finish: the larger corner radius enhances edge robustness and contributes to stable tool life, while the precise geometry supports predictable contact conditions for improved surface integrity. The MM5 chipbreaker is tuned for stainless steel to produce short, manageable chips that reduce the risk of tangling and minimise secondary operations for chip handling. Together, geometry and chip control support higher uptime and more efficient machining cycles.

Practical integration and application guidance for production use

As an indexable solution, this insert fits established CNMG toolholders and can be rotated to present fresh cutting edges, reducing tooling costs per part. The coated carbide construction and MM5 chipbreaker make the insert particularly suitable for component manufacturing where repeatability and process security matter. For specific cutting data, toolholder compatibility and optimal feeds and speeds in stainless steel applications, Metav Werkzeuge’s advisory service can provide tailored recommendations based on workpiece dimensions and machine capability.

For component makers seeking a robust solution for stainless steel turning, contact Metav Werkzeuge for technical guidance and prompt supply of Walter Tools CNMG120408-MM5 WMP30G inserts

Technical Data

• Article number: CNMG120408-MM5-WMP30G-WALTER
• Name: Drehwendeschneidplatte CNMG120408-MM5 WMP30G Walter Tools
• SKU: CNMG120408-MM5-WMP30G-WALTER
• Series: Tiger-tec Gold
• Grade: WMP30G
• Execution: G

Facts

• Insert shape: Rhombus 80°
• Size: 12
• Thickness: 04
• Corner radius: 0,8 mm
• Relief angle: 0° (negativ)
• Chipbreaker: MM5

Special features

• Coating: Tiger·tec Gold (coated carbide)
• Material suitability: stainless steel
• Cutting material class: beschichtetes Hartmetall
• Manufacturer: Walter Tools

FAQ

Which materials is this insert intended for?
The CNMG120408-MM5 WMP30G insert is specified for stainless steel machining; the WMP30G grade supports secure chip formation and stable cutting edges when machining these alloys.

What benefits does the MM5 chipbreaker provide?
The MM5 chipbreaker on this Walter Tools insert creates short, controllable chips in stainless steel, improving chip evacuation and reducing the risk of chip-related interruptions.

What are the key geometric features of the insert?
The insert is a rhombic 80° form with a 0.8 mm corner radius and a 0° (negative) relief angle, designed to balance edge strength and surface finish in medium to robust turning tasks.

Which series and coating does this grade belong to?
This turning grade is part of the Tiger·tec Gold series and is supplied as a coated carbide insert under the WMP30G designation for enhanced wear resistance.

Is the insert suited to interrupted cuts or heavier engagement?
The 0° negative relief and robust corner radius make the insert resilient under intermittent loading and suitable for medium to robust cutting conditions; adjust cutting parameters according to the specific application and machine capability.

Protected trademarks and trade names are the property of their respective owners and are mentioned for explanation only. There is no connection between our company and the named manufacturers. The offered item is an original, factory-new product of the manufacturer.

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