CNGA120412TM-M2 WBH10 Wendeplatten - Walter Tools

Benefit from a combination of CBN-based wear resistance, an 80° rhombic geometry and a 0° negative rake for stable hard turning; the insert delivers consistent edge integrity and predictable tool life. Order the CNGA120412TM-M2 WBH10 directly via Metav Werkzeuge or consult the technical advisors for process optimisation.

CNGA120412TM-M2 WBH10 — Indexable turning insert for hardened steels by Walter Tools

CNGA120412TM-M2 WBH10 is an indexable turning insert designed for the hard machining of hardened steels, offering CBN wear resistance and a geometry optimised for stability and repeatable results

• CBN grade WBH10 for hard turning
• Rhombic 80° insert shape
• Negative rake 0° for stable cutting
• 1.2 mm corner radius for edge strength

Engineered for high wear resistance and reliable performance

The CBN-based WBH10 grade embedded in this insert is developed specifically for demanding hard-turning operations. With a rhombic 80° geometry and 0° negative rake, the design prioritises cutting-edge stability and resistance to abrasive wear. The consequence is fewer unplanned tool changes and a higher degree of process predictability when machining hardened steels (~H). The combination of grade and geometry supports stable cutting forces under elevated contact stress, which helps maintain consistent dimensional accuracy in serial production.

Strong cutting edge and controlled chip formation for secure machining

A 1.2 mm corner radius and the M2 chipbreaker ensure robust edge strength while promoting manageable chip formation during finishing and semi-finishing passes. The negative relief reduces the risk of edge chipping in interrupted or unstable cuts, translating into longer effective tool life and less rework. The chipbreaker geometry moderates chip flow for safer evacuation and helps preserve surface integrity on high-hardness components, supporting higher process security and consistent surface quality with fewer process interruptions.

Application scope and operational advantages in production

This insert is intended primarily for turning operations on hardened steels and pre-hardened materials, where wear resistance and repeatable cutting performance are critical. Compatibility with established ISO groups for hard materials enables straightforward tool selection for process planners. The insert’s geometry and CBN-grade makeup support efficient hard finishing and semi-finishing strategies, reducing cycle time risks and improving overall productivity. For tailored recommendations on grade selection or turning strategy, technical consultation can refine cut parameters to match machine rigidity and component tolerances.

Contact Metav Werkzeuge for specific machining recommendations on Walter Tools CBN inserts and to identify the optimal insert geometry for hardened-steel turning tasks.

Technical data

• SKU: CNGA120412TM-M2-WBH10-WALTER
• Designation: CNGA120412TM-M2 WBH10
• Manufacturer: Walter Tools
• Series: Walter CBN / Hartstoff

Facts

• Corner radius: 1.2 mm
• Insert size: 12
• Thickness code: 04
• Relief angle: 0° (negative)
• Tolerance class: G

Special features

• Cutting material: CBN (WBH10)
• Chipbreaker: M2
• Insert shape: Rhombus 80°
• Applicable material group: H (hardened steels)
• Suitable for: steel, pre-hardened steel

FAQ

What materials is this insert suitable for?
The insert is suitable for machining hardened steels (ISO group H); the WBH10 CBN grade is formulated for high wear resistance in hard turning applications.

How does the 0° negative rake affect cutting performance?
A 0° negative rake increases edge strength and stability, reducing the likelihood of chipping during interrupted cuts and offering safer, more predictable performance in heavy-duty hard turning.

What benefits does the M2 chipbreaker provide?
The M2 chipbreaker promotes controlled chip formation and evacuation, which helps to protect the workpiece surface and maintain process reliability during finishing and semi-finishing passes.

Is this insert suitable for finishing operations?
Yes, the insert’s CBN grade and geometrical features are optimised for finishing and semi-finishing of hardened steels where surface quality and repeatable dimensions are required.

Can the CNGA120412TM-M2 WBH10 be indexed for multiple edges?
The design allows indexing of fresh cutting edges, supporting longer productive tool life through sequential use of the available cutting corners.

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

Protected trademarks and trade names remain the property of their respective owners. Brand names and trademarks are mentioned solely for explanatory purposes. There is no affiliation between our company and the referenced brands. The offered item is an original, brand-new product from the manufacturer.