CNGG120402M-MN3 WNN10 Wendeplatten - Walter Tools

Take advantage of the combination of a coated carbide grade and a precise Rhombic 80° geometry with an effective MN3 chipbreaker for reliable, repeatable turning results; order the insert directly via Metav Werkzeuge or consult the technical team for application-specific advice.

CNGG120402M-MN3 WNN10 indexable turning insert, Rhombic 80° / 0° negative rake — Walter Tools

A CNGG120402M-MN3 WNN10 indexable turning insert designed for versatile turning tasks where stable chip control and consistent edge life are required

• Coated carbide grade WNN10
• Rhombic 80° geometry
• 0° negative rake for heavy cuts
• MN3 chipbreaker for controlled chips

Higher process reliability through robust geometry and grade

The combination of coated carbide and the WNN10 grade delivers wear resistance suitable for demanding turning applications while maintaining cost-efficient performance. The Rhombic 80° shape provides a good balance between cutting-edge strength and accessibility to shoulders and profiles, which supports steady machining and repeatable part quality. This geometry reduces the need for frequent tool changes and contributes to improved throughput and predictable tool life.

Consistent chip control and secure cutting action

Integrated MN3 chipbreaker geometry and the 0° negative rake orientation enable controlled chip formation even under interrupted or heavy cutting conditions. The 0.2 mm corner radius helps to achieve improved surface finish and edge robustness on roughing passes, while the negative rake increases insert stability for hard-to-machine sections. Together, these features lower the risk of edge chipping and assist in maintaining cycle-time stability on production runs.

Practical fitment and compatibility for workshop tooling

The insert uses a standardised size designation (size 12) and thickness code (04), ensuring compatibility with a wide range of indexable toolholders designed for rhombic 80° inserts. The compact profile of the insert and its consistent thickness code facilitate straightforward tool setup and clamping accuracy, reducing set-up time. For exact holder compatibility and cutting data, the manufacturer's product matrix should be consulted to match insert grade, clamping seat and machining conditions.

Efficient use and material suitability guidance

This turning insert originates from Walter Tools’ open series and is specified as a coated carbide variant aimed at broad process applicability. Material suitability must be checked against the product matrix provided by the manufacturer, since the grade is optimised for a range of materials rather than a single application. When chosen appropriately, the insert supports improved process stability, reproducible surface quality and lower tooling consumption over production cycles.

For application-specific selection, availability and fast technical advice regarding Walter Tools indexable inserts, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: CNGG120402M-MN3-WNN10-WALTER
• Product: indexable turning insert
• Designation: CNGG120402M-MN3 WNN10
• Manufacturer: Walter Tools
• Series: Walter Schneidstoffsorte - Serie offen

Core specifications

• Size: 12
• Thickness code: 04
• Corner radius: 0.2 mm
• Rake angle: 0° (negative)

Features and materials

• Insert form: Rhombus 80°
• Chipbreaker: MN3
• Carbide grade: WNN10 (coated carbide)
• Material: catalogue-dependent
• Tolerance class: G
• Execution: G

FAQ

What is the primary advantage of this insert's Rhombic 80° form?
The Rhombic 80° form provides a compromise between cutting-edge strength and profile access; the CNGG120402M-MN3 WNN10 insert offers reliable edge support for general turning and profiling tasks.

Which chip formation can be expected with the MN3 breaker?
The MN3 chipbreaker on the Walter Tools insert is designed for controlled, short to medium chip shapes under typical turning feeds, assisting consistent evacuation and safe production cycles.

Is this insert suitable for heavy or interrupted cuts?
Yes, the 0° negative rake and the robust WNN10 coated carbide grade make the insert appropriate for heavier cuts and intermittent engagement, with improved resistance to edge chipping.

How to verify holder compatibility for this insert?
Check the toolholder manufacturer's compatibility list against the insert designation CNGG120402M-MN3 WNN10 and the thickness code 04; confirm seat geometry and clamping method before assembly.

Where to find detailed cutting data and material recommendations?
Detailed cutting parameters and material suitability are available in the manufacturer's product matrix; consult Walter Tools documentation or Metav Werkzeuge for matched application data.

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

Protected trademarks and trade names are the property of their respective owners. Brand names and protected product names are mentioned solely for explanatory purposes. There is no affiliation between Metav Werkzeuge and the mentioned manufacturers. The offered item is original, factory-new merchandise from the manufacturer.