CNGG120408M-MN3 WN10 Wendeplatten - Walter Tools

Benefit from the combination of a reliable WN10 uncoated carbide grade, the Rhombus 80° geometry and the MN3 chipbreaker for consistent chip control and robust edge stability; order directly via Metav Werkzeuge or consult our application specialists for tailored recommendations.

CNGG120408M-MN3 WN10 – Indexable turning insert, Rhombus 80° / 0.8 mm corner radius (Walter Tools)

The CNGG120408M-MN3 WN10 is a rhombic 80° indexable turning insert designed for general turning applications where predictable cutting behaviour and stable chip formation are required

• Rhombic 80° geometry for versatile turning
• 0.8 mm corner radius for a robust edge
• Negative 0° rake for stable cutting conditions
• Uncoated carbide WN10 for predictable wear

Geometry that supports dependable production results

The combination of Rhombus 80° geometry and a 0.8 mm corner radius creates an insert that balances cutting versatility with edge strength. Rhombic geometry allows a range of approach angles, making the insert suitable for various turning tasks without frequent tool changes. The corner radius increases edge robustness, which helps to reduce the risk of chipping during interrupted cuts and contributes to more consistent component quality. In practical terms, this means fewer unexpected interruptions on the shop floor and a smoother production flow.

Material and chip control engineered for routine machining

The insert uses the WN10 grade, an uncoated carbide designed for general performance; the exact workpiece suitability should be verified against the product matrix. The integrated MN3 chipbreaker is shaped to promote compact, controllable chips during standard turning operations, reducing the likelihood of entanglement and improving swarf evacuation. For operators and process engineers, this translates into more predictable tool life and easier handling of chip flow in automated or manual machining environments.

Practical handling and selection advice for the workshop

The designation indicates a compact, negative‑rake insert with a 0° free angle (negative) and nominal plate size of 12. The negative rake contributes to a more robust cutting edge under heavier load and can be advantageous for roughing passes or unstable setups. When specifying tooling for a component, consider the intended depth of cut and feed to match the 0.8 mm corner radius and the insert form; proper matching helps to reduce rework and improves first‑pass yield. For unfamiliar materials or special alloys, consult the product matrix to confirm optimal application parameters.

Select the Walter Tools WN10 rhombic indexable insert for predictable turning performance and contact Metav Werkzeuge for application advice or to arrange supply: info@metav-werkzeuge.com | +49 2822 7131930

Technical data

• Article number: CNGG120408M-MN3-WN10-WALTER
• Article name: Drehwendeschneidplatte CNGG120408M-MN3 WN10 Walter Tools
• Manufacturer: Walter Tools
• Product type: Indexable turning insert

Numbers / Core technical data

• Plate size: 12
• Thickness: 04
• Corner radius: 0.8 mm
• Free angle: 0° (negative)
• Tolerance class: G

Designs / Special features

• Uncoated carbide grade WN10
• MN3 chipbreaker
• Rhombus 80° plate form
• Negative‑rake geometry
• Series: Walter Schneidstoffsorte - Serie offen

FAQ

What does the designation CNGG120408M-MN3 WN10 mean?
The designation describes the insert form and key parameters: a rhombic 80° insert (CNGG), nominal size 12, thickness code 04, MN3 chipbreaker and the WN10 uncoated carbide grade for general turning.

Which workpiece materials are suitable for this insert?
Material suitability must be checked against the manufacturer product matrix; WN10 is an uncoated carbide intended for broad application, but specific alloys and hardened materials require verification.

How does the MN3 chipbreaker benefit machining?
The MN3 chipbreaker promotes compact, manageable chips and improved swarf control, which supports continuous operation and safer chip handling in automated and manual turning.

Can the insert be used for roughing and finishing?
The negative 0° rake and 0.8 mm corner radius favour robust cutting and make the insert suitable for heavier cuts; finishing passes are possible but should respect feed and depth limits and be validated against the process requirements.

Manufacturer/Responsible: AB Sandvik Coromant, Mossvägen 10, 811 34 Sandviken, Sweden; support.coromant@sandvik.com

The Walter AG (brand appearance: Walter Tools) is one of the worldwide leading manufacturers of precision tools for metalworking and is part of the Sandvik group. Protected trademarks and trade names remain the property of their respective owners. Brand names and protected trade marks are mentioned solely for explanatory purposes. There is no connection between our company and the named brands. The offered article is an original, factory‑new product of the manufacturer.