CNGA120404TM-M2 WBH10 Wendeplatten - Walter Tools

Take advantage of the combination of extreme wear resistance, a stable edge geometry and clear suitability for hardened steels to maintain consistent production quality in hard turning operations. The CBN grade WBH10 ensures long tool life under high contact stress while the rhombic 80° form and 0° negative rake deliver reliable cutting stability. Order the CNGA120404TM-M2 WBH10 directly via Metav Werkzeuge or ask our consultants if needed.

CNGA120404TM-M2 WBH10 indexable turning insert — CBN grade for hard machining, Walter Tools

A CNGA120404TM-M2 WBH10 indexable turning insert designed for precision hard turning of hardened and pre-hardened steels in production environments

• CBN grade WBH10 for hard materials
• Rhombic 80° geometry for turning
• 0° negative rake for stable cutting
• Corner radius 0.4 mm for robust edge

High wear resistance for consistent hard turning performance

The CBN-based WBH10 grade is developed for demanding hard machining tasks and delivers exceptional wear resistance when cutting hardened steels (ISO group H). In practical terms, this means fewer insert changes and longer uninterrupted cycles on components that demand high surface integrity. The grade balances hardness and fracture resistance so that stable chip formation and predictable tool life become the norm in repetitive production runs.

Geometry engineered to improve cutting stability and edge life

The rhombic 80° shape combined with a 0° negative rake provides a rigid cutting edge that resists mechanical shock and edge chipping during heavy or interrupted cuts. The 0.4 mm corner radius supports robust edge strength without compromising achievable surface finish, while the M2 chipbreaker helps control chips in a wide range of depths of cut. Together these geometry choices translate into lower vibration, reliable dimensional control and improved process stability for turning operations.

Suited for hardened and pre-hardened materials in precision applications

Designed primarily for the machining of hardened steels and applicable to pre-hardened steel, the insert is intended for finishing and semi-finishing passes where surface quality and repeatability are critical. Depending on the workpiece alloy and process window, the WBH10 grade may also be considered for certain cast materials or high-temperature alloys when wear resistance and edge stability are the priority. The result is a versatile option for shops that handle components with elevated hardness levels.

Practical selection and process benefits in series production

As an indexable solution from the Walter CBN / Hartstoff series, the insert supports straightforward tool management and inventory control in production shops. The robust grade and geometry reduce overall tooling consumption and help maintain cycle times under load, fostering cost-efficiency over the life of a job. For process planning, match cutting parameters to the insert’s robustness: modest to firm feeds with controlled cutting speeds typically deliver the most consistent performance when working with hardened materials. For further optimisation, technical advisers can provide recommended starting parameters for specific machine and workpiece combinations.

For production-critical hard turning, choose the Walter Tools CNGA120404TM-M2 WBH10 insert and contact Metav Werkzeuge for ordering or tailored technical advice at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: CNGA120404TM-M2-WBH10-WALTER
• SKU: CNGA120404TM-M2-WBH10-WALTER
• Product type: Turning insert (indexable)
• Series: Walter CBN / Hartstoff
• Grade: WBH10

Facts

• Size: 12 mm
• Thickness: 4 mm
• Corner radius: 0.4 mm
• Rake angle: 0° (negative)
• Tolerance class: G

Special features

• CBN grade WBH10 for hard machining
• Rhombic 80° insert shape
• Chipbreaker: M2
• Suitable for hardened steels (ISO H)
• Applicable to pre-hardened steel

FAQ

Which materials can be machined with this insert?
The CNGA120404TM-M2 WBH10 insert is intended primarily for hardened steels (ISO H) and is suitable for pre-hardened steel applications; the WBH10 CBN grade offers the wear resistance required for those material groups.

What are the key geometric details of the insert?
The insert features a rhombic 80° form, a corner radius of 0.4 mm, a 0° negative rake and an M2 chipbreaker, providing a balance of edge strength and chip control for hard turning.

For which turning operations is this insert recommended?
This indexable turning insert is designed for finishing and semi-finishing in hard turning processes where stable cutting and surface integrity are required, making it suitable for serial production of hardened components.

How does the WBH10 grade affect tool life and process stability?
The WBH10 CBN grade is engineered for high wear resistance and stable cutting under the elevated contact stresses of hardened-metal machining, resulting in longer insert life and more predictable cycle times.

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