CNGA120404TM-2 WBH20 WBH20 Wendeplatten - Walter Tools

Take advantage of a high-wear CBN grade and a robust 80° geometry to secure longer tool life and consistent turning results in hardened materials; order directly via Metav Werkzeuge or contact our technical consultants for application advice.

CNGA120404TM-2 WBH20 — Indexable turning insert, CBN grade for hardened steels | Walter Tools

A CNGA120404TM-2 WBH20 indexable turning insert engineered for hard turning and demanding finishing of hardened steels within industrial production environments.

• CBN grade WBH20 for extreme wear resistance
• Rhombic 80° geometry for stable turning
• 0.4 mm corner radius for precise finishing
• Negative rake 0° for robust cutting action

Exceptional wear performance that reduces downtime

The core advantage of the WBH20 grade is its CBN cutting material, specifically developed for high-abrasion tasks on hardened steels. This composition delivers a long tool life and elevated process stability, meaning fewer insert changes and less unplanned downtime on the shop floor. The material choice is particularly effective where hardness and cutting forces are high, ensuring consistent production throughput and predictable maintenance intervals.

Stable geometry for repeatable surface quality

The insert’s 80° rhombic geometry combined with a 0.4 mm corner radius and negative rake 0° provides a balance between strength and finishing capability. The form resists edge chipping under heavy loads while enabling a fine surface profile when cutting force is controlled. As a result, planners benefit from improved surface finish and reduced need for secondary operations, which supports tighter tolerance control and repeatable parts quality in serial production.

Designed for demanding applications and reliable process windows

Intended for the machining of pre‑hardened and hardened steels in accordance with ISO 513 group H, the insert is suitable for hard turning tasks where abrasion resistance and edge stability are decisive. Using a CBN cutting material in this context increases cutting-edge life and supports higher cutting speeds compared with conventional grades, improving overall productivity and lowering cost per part in the long run.

Simple selection and integration into existing tooling systems

This indexable solution integrates directly into standard toolholders compatible with rhombic 80° inserts and supports straightforward tool selection for production engineers. The combination of CBN performance and robust geometry reduces process variability and enables consistent cycle times. For toolroom managers, the result is a predictable machining strategy that eases planning and inventory control while maintaining part quality under demanding conditions.

For detailed application support on Walter Tools CBN inserts and recommendations tailored to individual machines and workpiece specifications, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 for expert guidance and ordering.

Technical Data

• Article number: CNGA120404TM-2-WBH20-WALTER
• Label: Drehwendeschneidplatte CNGA120404TM-2 WBH20 Walter Tools
• Product type: Indexable turning insert (Drehwendeschneidplatte)
• Series: Walter CBN / Hartstoff
• Grade: WBH20

Facts

• Geometry: Rhombus 80°
• Corner radius: 0.4 mm
• Insert size: 12
• Thickness designation: 04
• Relief/clearance: 0° (negative)
• Tolerance class: G
• Execution: A
• Chipbreaker: 2

Special features

• CBN cutting material (WBH20)
• Suitable for hardened steels (ISO 513 H)
• Designed for hard turning and high wear applications
• Robust cutting edge for stable process performance
• For use in compatible 80° rhombic toolholders

FAQ

What materials is this insert intended for?
The CNGA120404TM-2 WBH20 insert is designed primarily for hardened steels (ISO 513 group H) and is optimised for hard turning operations requiring high wear resistance.

How does the WBH20 grade affect tool life?
The WBH20 CBN grade provides high abrasion resistance and edge stability, which typically extends tool life and reduces the frequency of insert changes in hard machining applications.

Can the insert produce a fine surface finish despite its robust geometry?
Yes. The combination of 80° rhombic geometry and a 0.4 mm corner radius balances strength with the ability to deliver consistent surface quality when cutting parameters are correctly set.

Is this insert suitable for pre-hardened steels?
The insert is suitable for pre‑hardened and fully hardened steels; its CBN composition and geometry are intended to maintain cutting performance under elevated hardness conditions.

What should be considered when integrating this insert into a production line?
Toolholders compatible with 80° rhombic inserts should be used and cutting data must be adapted to the machine’s rigidity and workpiece material; the insert’s design supports predictable cycle times and repeatable part quality.

Manufacturer/Responsible: AB Sandvik Coromant, Mossvägen 10, 811 34 Sandviken, Sweden, support.coromant@sandvik.com

Protected trademarks and trade names are the property of their respective owners. Brand names and registered trademarks are mentioned for explanatory purposes only. There is no connection between our company and the named brands. The offered article is original factory-new goods of Walter Tools.