DNGA150608TM-4 WBH20C WBH20C Wendeplatten - Walter Tools

Benefit from the combination of exceptional wear resistance from a CBN cutting grade and a robust 0.8 mm corner radius for stable hard-part turning; order the insert via Metav Werkzeuge or consult our specialists for application support.

DNGA150608TM-4 WBH20C — Indexable turning insert, CBN grade for hardened steels, Rhombic 55°

The DNGA150608TM-4 WBH20C is a rhombic 55° indexable insert designed for demanding hard-part turning and high-wear applications in hardened steels.

• CBN grade WBH20C for high wear resistance
• Specifically for hardened-steel machining
• Rhombic 55° form for versatile turning
• Negative 0° rake with 0.8 mm corner radius

Durable performance for hard-part turning

The use of CBN as the cutting material provides a clear benefit when machining hardened steels: superior wear resistance and consistent edge life. The coated CBN grade WBH20C is formulated for abrasive and high-temperature contact typical of hard machining, which reduces the frequency of index changes and supports uninterrupted production cycles. As a result, cycle time predictability improves and process stability is enhanced, making this insert suitable where reproducible results and tool longevity are essential.

Geometry that balances strength and finish

The Rhombic 55° geometry and a 0.8 mm corner radius combine to deliver robust edge support and a good surface finish on turned components. The moderate corner radius increases edge strength against mechanical shock and chipping during interrupted cuts, while the rhombic form allows flexible approach angles for a variety of turning tasks. The negative 0° rake contributes to a reinforced cutting edge, favouring tool life in heavy, high-resistance cuts without compromising dimensional consistency.

Process reliability and operational advantages

Designed as an indexable turning insert for industrial environments, this component emphasises process reliability. The coated CBN grade minimises flank wear under the high contact pressures of hardened materials and aids in maintaining dimensional accuracy over multiple indices. The combination of stable chip control, given by the chipbreaker designation, and a predictable tolerance class means operators and process engineers can plan tool-change intervals and machining parameters with confidence, improving overall shop-floor efficiency.

Material compatibility and recommended use cases

Marked for application on hardened steels and suitable for pre-hardened material, the insert supports operations where hardness and abrasion dominate the cutting regime. Typical uses include the finishing and semi-finishing of hardened shafts, bearings and wear parts where a consistent cutting edge and repeatable surface quality are required. When paired with a compatible DNGA toolholder and a stable setup, this insert contributes to high-quality, repeatable turning of challenging workpiece materials.

For hard-part turning requiring maximum wear resistance, request the Walter Tools DNGA150608TM-4 WBH20C via Metav Werkzeuge or contact our technical team at info@metav-werkzeuge.com / +49 2822 7131930 for application advice and compatibility checks

Technical Data

• SKU: DNGA150608TM-4-WBH20C-WALTER
• Designation: DNGA150608TM-4 WBH20C
• Manufacturer: Walter Tools
• Product type: Indexable turning insert

Core data

• Plate size: 15
• Corner radius: 0.8 mm
• Thickness: 06
• Negative rake: 0°
• Shape angle: 55°

Special features

• Series: Walter CBN / Hartstoff
• Grade: WBH20C (coated CBN grade)
• Material designation: H
• Suitable for: hardened steel; pre-hardened steel
• Chipbreaker: 4
• Tolerance class: G
• Execution: A

FAQ

What materials is the DNGA150608TM-4 WBH20C suitable for?
This insert is intended primarily for hardened steels (material group H) and is also suitable for pre-hardened steel applications, as indicated by the tool’s designation and series.

What does the WBH20C grade signify?
The WBH20C marking denotes a coated CBN cutting grade engineered for high wear resistance and thermal stability during the machining of hard and abrasive workpiece materials.

How does the 0.8 mm corner radius affect machining?
A 0.8 mm corner radius increases edge robustness and reduces the tendency to chip under heavy or interrupted cuts while still allowing a good surface finish on turned components.

Is the insert designed with a positive or negative rake?
The insert features a negative 0° rake, which strengthens the cutting edge and supports durability in high-contact, hard-material cutting conditions.

Which toolholder format matches this insert?
The ISO designation DNGA150608TM-4 identifies the insert format and will match compatible DNGA-format turning toolholders designed for rhombic 55° indexable inserts.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com

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