CNGG120404M-MN3 WNN10 Wendeplatten - Walter Tools

Take advantage of the WNN10 coated carbide grade, the Rhombus 80° geometry and the MN3 chipbreaker to achieve consistent chip control and long tool life in serial turning operations; order the insert directly via Metav Werkzeuge or consult our specialists for application-specific cutting data.

CNGG120404M-MN3 WNN10 — Indexable turning insert, Rhombus 80°, 0° negative rake — Walter Tools

The CNGG120404M-MN3 WNN10 is an indexable turning insert designed for general-purpose and finish turning where reliable chip control and repeatable surface quality are required

• Rhombus 80° geometry for versatile turning
• WNN10 coated carbide for consistent wear resistance
• MN3 chipbreaker for controlled chip formation
• 0.4 mm corner radius with 0° negative rake

Longer tool life through a modern coated carbide grade

The insert uses a coated carbide grade from the Walter range, identified as WNN10, which balances wear resistance with process stability. Thanks to the coating and substrate combination, the cutting edge maintains form over extended cycles, reducing the need for frequent indexing. The result is improved uptime and fewer tool changes, which supports higher productivity in batch and continuous production environments. Check the supplied grade matrix for exact workpiece compatibility and cutting data.

Consistent chip control and surface quality for predictable machining

With a Rhombus 80° shape and an integrated MN3 chipbreaker, this insert promotes controlled chip formation across common turning operations. The geometry supports good surface finish while the 0° negative rake helps stabilise cutting forces on interrupted cuts and on components with dimensional variations. These characteristics lower the risk of edge damage and enable consistent part quality, which is particularly valuable in CNC turning centres aiming for reproducible results.

Simple specification and robust tolerance for reliable integration

The insert is supplied in the ISO designation CNGG120404M-MN3 WNN10, with a nominal insert size of 12 and a corner radius of 0.4 mm; the tolerance class is G, suitable for standard clamping systems. This combination simplifies tool selection and reduces setup complexity when replacing or stocking inserts. Because the grade is catalogue-dependent for some dimensions, Metav Werkzeuge can provide matching holders and recommended parameters to ensure reliable tool life and machining performance.

Contact Metav Werkzeuge for tailored cutting data for the WNN10 grade and precise recommendations for Walter Tools inserts — eMail info@metav-werkzeuge.com or call +49 2822 7131930 for application support

Technical data

• Article number / SKU: CNGG120404M-MN3-WNN10-WALTER
• Product type: Indexable turning insert
• Manufacturer brand: Walter Tools
• ISO designation: CNGG120404M-MN3 WNN10

Facts

• Insert size: 12
• Insert thickness: 04
• Corner radius: 0.4 mm
• Relief / rake: 0° (negative)
• Geometry: Rhombus 80°
• Tolerance class: G

Special features

• Coating / grade: WNN10 (coated carbide)
• Chipbreaker: MN3
• Series: Walter Schneidstoffsorte - Serie offen
• Material designation: catalogue-dependent
• Application note: Check product matrix for workpiece suitability

FAQ

What materials is this insert suitable for?
The suitability depends on the concrete product matrix for the CNGG120404M-MN3 WNN10; the grade WNN10 is a coated carbide designed for broad applicability, but precise recommendations should be checked against the workpiece material specification.

How does the MN3 chipbreaker affect turning performance?
The MN3 chipbreaker supports controlled chip formation and evacuation, improving surface finish and reducing the likelihood of entangling chips during continuous turning cycles with the Walter Tools insert.

Can this insert be used for interrupted cuts?
Yes, the 0° negative rake and robust grade combination make the insert resistant to impact on interrupted cuts, contributing to a stable edge and predictable wear behaviour.

What does the tolerance class G mean for setup?
Tolerance class G denotes standard geometric tolerances that ensure compatibility with common toolholders and clamping systems, aiding quick replacement and consistent tool offsets.

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

Walter AG (brand presentation: Walter Tools) is one of the world’s leading manufacturers of precision tools for metalworking and is part of the Swedish Sandvik group. Protected trademarks and trade names are the property of their respective owners and 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.