CNGA120408TS-2 WBK20 WBK20 Wendeplatten - Walter Tools

Take advantage of the combination of high wear resistance, precise edge geometry and stable chip control for reliable hard-material turning operations; order directly via Metav Werkzeuge or consult our specialists for application-specific recommendations.

CNGA120408TS-2 WBK20 — Indexable turning insert, CBN grade, Walter Tools

The CNGA120408TS-2 WBK20 is an indexable turning insert engineered for hard, high-wear machining tasks such as hardened steels and similar alloys, offering stable cutting performance in demanding production environments.

• CBN grade WBK20 for hard, high-wear machining
• Rhombic 80° geometry for stable cutting performance
• 0° negative rake for reliable chip control
• 0.8 mm corner radius for versatile finishing

Consistent productivity when machining hardened materials

The CBN-based WBK20 grade provides exceptionally high abrasion resistance compared with conventional carbide solutions; this makes the insert particularly suitable for turning hardened steels and other high-wear alloys where tool life and process stability determine efficiency. The CBN substrate resists edge wear, reducing tool changes and interruptions. In practice, this translates into fewer changeovers and improved machine utilisation, contributing directly to lower piece costs in series production.

Precise geometry for predictable surface quality

Built on a Rhombic 80° platform with a 0.8 mm corner radius and a 0° negative rake, the insert delivers predictable cutting forces and manageable chip formation. The combination of geometry and rake ensures controlled engagement and stable cutting when confronting tough workpiece materials, helping to maintain a consistent surface finish and dimensional repeatability. The insert’s geometry is particularly effective in finishing and semi-finishing passes where process reliability and surface integrity are priorities.

Process advantages and handling in the workshop

As an indexable turning insert, the CNGA120408TS-2 WBK20 simplifies tool inventory and reduces setup time: indices can be rotated to present fresh cutting edges without regrinding, which supports uninterrupted production cycles. The insert’s chipbreaker designation and negative rake angle promote effective chip control under high thermal and mechanical load, aiding coolant-free or reduced-coolant strategies in appropriate applications. Selection of this insert supports leaner workflows and predictable maintenance intervals.

Contact Metav Werkzeuge for tailored application advice, material suitability checks and to request the CNGA120408TS-2 WBK20 from Walter Tools for immediate integration into the production process.

Technical Data

• Article number: CNGA120408TS-2-WBK20-WALTER
• Designation: CNGA120408TS-2 WBK20
• Product type: Indexable turning insert
• Manufacturer: Walter Tools
• Series: Walter Schneidstoffsorte - Serie offen
• Execution: A
• Tolerance class: G

Core specifications

• Insert size: 12 mm
• Corner radius: 0.8 mm
• Free/lead angle: 0° (negative)
• Chipbreaker: 2
• Thickness code: 04

Special features

• CBN cutting material (WBK20) for hard, high-wear applications
• Rhombic 80° insert form
• Designed for hardened steels and similar alloys (see product matrix)
• Stable edge geometry for extended tool life

FAQ

What materials is this insert best suited to machine?
The CNGA120408TS-2 WBK20 from Walter Tools uses a CBN grade optimised for machining hardened steels and other high-wear materials; suitability should be confirmed against the specific product matrix for best results.

Can the CNGA120408TS-2 WBK20 be used for finishing passes?
Yes, the combination of 0.8 mm corner radius and Rhombic 80° geometry provides the stability and surface control required for consistent finishing operations.

How does the negative 0° rake influence cutting behaviour?
The 0° negative rake increases edge robustness and stabilises chip formation under high mechanical load, improving process reliability when turning hard materials.

Is the insert compatible with standard CNGA toolholders?
The CNGA120408TS-2 WBK20 follows the CNGA designation and is intended for standard CNGA-compatible toolholders; verify holder fit and clamping specifications before mounting.

Are index rotations possible to extend edge life?
Yes, as an indexable turning insert the CNGA120408TS-2 WBK20 allows edge indexing to present fresh cutting corners and extend the usable life of the insert.

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

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