CNGA120404TM-2 WBH20C WBH20C Wendeplatten - Walter Tools

Benefit from the CBN‑coated hardness, the rhombic 80° geometry and the precise 0.4 mm corner radius to achieve consistent, long‑life hard turning results; order the CNGA120404TM‑2 WBH20C via Metav Werkzeuge or consult our specialists for application advice.

CNGA120404TM-2 WBH20C indexable turning insert — CBN grade for hardened steels (Walter Tools)

The CNGA120404TM-2 WBH20C is an indexable turning insert designed for hard turning and high‑wear applications, combining a robust rhombic 80° shape with a coated CBN grade for machining hardened steels and pre‑hardened components.

• CBN‑coated for extreme wear resistance
• Designed for hardened steels and pre‑hardened work
• Rhombic 80° form for stable tool engagement
• 0.4 mm corner radius for predictable edge life

Exceptional wear resistance for demanding hard turning

The insert uses a coated CBN grade developed for machining hardened steels, delivering high abrasion resistance and stable cutting edges under elevated temperatures and pressures. This indexable insert reduces the frequency of tool changes and supports longer uninterrupted production runs by maintaining dimensional accuracy over extended tool life. Coated CBN is particularly effective where conventional carbide rapidly loses its cutting edge; the result is fewer interventions, fewer rejects and a more predictable machining process.

Stable geometry to secure dimensional accuracy and edge life

The rhombic 80° shape and 0° clearance (negative) geometry create a robust engagement geometry that resists chipping and edge deformation when cutting tough, hardened materials. The modest 0.4 mm corner radius supports reproducible edge strength and surface finish while allowing controlled chip formation. Negative clearance contributes to a stronger cutting edge in interrupted cuts or heavy‑duty turning, enabling consistent component tolerances and improved process reliability in high‑stress turning operations.

Engineered for productivity and straightforward integration

Belonging to the Walter CBN / Hartstoff series and produced in the WBH20C grade, this insert is intended for hard machining tasks where sustained performance is essential. The packaged specification — size 12, thickness 04 and chipbreaker 2 — supports common toolholder interfaces and makes integration into existing turning cells simple. With tolerance class G, dimensional conformity supports automated set‑up and repeatable results, helping to increase throughput while reducing downtime for retooling or adjustment.

For tailored application guidance or to request samples of the CNGA120404TM‑2 WBH20C, contact Metav Werkzeuge for expert advice and rapid delivery coordination: eMail info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• SKU: CNGA120404TM-2-WBH20C-WALTER
• Type: Indexable turning insert (Drehwendeschneidplatte)
• Designation: CNGA120404TM-2 WBH20C
• Series: Walter CBN / Hartstoff
• Grade: WBH20C

Facts

• Size: 12
• Thickness: 04
• Corner radius: 0.4 mm
• Insert form: Rhombic 80°
• Clearance angle: 0° (negative)
• Chipbreaker: 2
• Tolerance class: G

Special features

• Suitable for hardened steels (H)
• Suitable for pre‑hardened steel machining
• Coated CBN cutting material for high wear resistance
• Application: Hard turning and high abrasion tasks
• Execution: A

FAQ

Which materials is this insert suitable for?
The CNGA120404TM‑2 WBH20C by Walter Tools is specified for hardened steels and is also suitable for many pre‑hardened steel machining tasks thanks to its coated CBN cutting material.

What is the insert geometry and how does it affect cutting?
The insert features a rhombic 80° form with a 0.4 mm corner radius and 0° clearance (negative); this combination gives a strong cutting edge suitable for heavy cuts and interrupted surfaces while supporting predictable chip formation.

How does the CBN grade benefit tool life and process stability?
The WBH20C CBN grade provides superior abrasion resistance and thermal stability, which translates to longer tool life, fewer changeovers and more consistent component quality when turning hardened materials.

Can the CNGA120404TM‑2 WBH20C be used in automated production lines?
Yes, with tolerance class G and standard dimensions (size 12, thickness 04) the insert is compatible with common toolholders and supports repeatable set‑up for automated turning processes.

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

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