CNGA120408TM-2 WBH10C Wendeplatten - Walter Tools

Take advantage of the combination of coated CBN performance and a robust 0.8 mm corner radius for reliable hard-turning operations; order directly via Metav Werkzeuge or consult our specialists for application-specific advice.

CNGA120408TM-2 WBH10C — Turning indexable insert, coated CBN for hardened steels, Walter Tools

the CNGA120408TM-2 WBH10C is a rhombic 80° turning insert designed for demanding hard‑machining tasks on hardened steels

• CBN-coated grade WBH10C for hard materials
• Rhombic 80° shape for versatile turning
• Negative 0° rake for stable cutting
• 0.8 mm corner radius for robust edge

Maximise process reliability in hard turning

The coated CBN cutting material (WBH10C) is engineered for wear resistance and a steady cutting edge when machining hardened steels (ISO 513 group H). This makes the insert particularly suitable for applications where tool life and repeatable performance are critical. The use of cubic boron nitride as a cutting material reduces flank wear under high thermal and mechanical loads, resulting in more consistent component tolerances and fewer tool changes during production.

Geometry that balances strength and surface quality

The rhombic 80° insert geometry combined with a 0.8 mm corner radius and a negative 0° free angle delivers a robust cutting edge capable of withstanding interrupted cuts and variable workpiece conditions. The geometry supports stable chip formation through the specified chipbreaker (#2), which helps maintain predictable chip control and reduces the risk of built-up edge. For shops processing pre‑hardened and hardened components, this combination provides an efficient compromise between strength and finish quality.

Intended applications and selection guidance

Designed for hard‑machining tasks such as finishing and semi‑finishing of hardened steels and similar high‑wear materials, the insert is available in the Walter CBN / hard material series and complies with tolerance class G. The plate dimensions (designation CNGA120408TM‑2) and the rhombic form allow straightforward indexing and reuse of cutting edges, supporting productive small‑batch and series production alike. For material groups outside hardened steels, consult the technical documentation to confirm suitability.

Contact Metav Werkzeuge for tailored advice on selecting Walter Tools inserts and specification support; technical consultants are available by email or phone.

Technical data

• SKU: CNGA120408TM-2-WBH10C-WALTER
• Product type: Drehwendeschneidplatte (turning indexable insert)
• Series: Walter CBN / Hartstoff
• Grade: WBH10C
• ISO designation: CNGA120408TM-2 WBH10C

Facts

• Insert shape: Rhombus 80°
• Insert size: 12
• Thickness: 04
• Corner radius: 0.8 mm
• Free angle: 0° (negative)
• Chipbreaker: 2
• Tolerance class: G
• Execution: A

Special features

• Coated CBN cutting material
• Suitable for hardened steels (ISO 513 group H)
• Stable chip formation and wear resistance
• Series designed for hard machining

FAQ

What materials is this insert intended for?
The CNGA120408TM-2 WBH10C insert is intended primarily for hardened steels (ISO 513 group H) and for applications requiring high wear resistance.

How does the WBH10C grade benefit hard‑turning processes?
The WBH10C coated CBN grade offers high resistance to flank wear and thermal degradation, which leads to longer tool life and more consistent component tolerances during hard machining.

What is the significance of the rhombic 80° shape and 0.8 mm radius?
The rhombic 80° geometry enables versatile turning positions and easy indexing, while the 0.8 mm corner radius strengthens the cutting edge for interrupted cuts and improves edge life.

Is the insert suitable for pre‑hardened steels?
Yes; the insert is indicated for pre‑hardened and hardened steel applications and is part of a series optimised for such materials.

Which series does this insert belong to and what does that imply?
This turning insert belongs to the Walter CBN / hard material series, implying a focus on productive hard machining, stable chip formation and reliable cutting performance.

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

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Hersteller: Walter Tools; Die Walter AG (Markenauftritt: Walter Tools) mit Hauptsitz in Tübingen gehört zu den weltweit führenden Herstellern von Präzisionswerkzeugen für die Metallbearbeitung und ist Teil des schwedischen Sandvik-Konzerns.

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