VNGA160408SM-S WCH10C WCH10C Wendeplatten - Walter Tools

Take advantage of the combination of high wear resistance, stable edge design and process-ready geometry to increase uptime in hard-turning operations; order the insert directly via Metav Werkzeuge or consult our technical advisers for application-specific recommendations.

VNGA160408SM-S WCH10C — Indexable turning insert, Walter Tools (Rhombic 35°, 0° negative)

The VNGA160408SM-S WCH10C is an indexable turning insert engineered for hard machining applications, offering a coated ceramic grade in the Walter CBN / hard-material series for high-temperature, high-speed turning of hardened steels.

• Walter CBN hard-material grade WCH10C
• Optimised for hardened steels (ISO group H)
• Rhombic 35° geometry, 0.8 mm corner radius
• Negative 0° relief, stable chip control S

Maximise productivity with a temperature-resistant, high-speed grade

The WCH10C grade is a coated ceramic cutting material developed for demanding hard-turning tasks. Its composition provides high cutting-speed capability and excellent wear resistance, which translates into longer tool life and fewer insert changes on production lines. Ceramic grades are particularly tolerant of elevated temperatures, so the insert maintains performance under thermal stress; this reduces the risk of flank wear and supports consistent part quality in series production. For process planners, the result is measurable time savings and a more stable machining window.

Geometry and edge design that improve stability and surface quality

The rhombic 35° insert form combined with a 0.8 mm corner radius and negative 0° relief offers a robust edge arrangement that withstands the demands of hard materials. A negative rake increases edge strength and reduces the tendency for chipping during interrupted cuts, while the specified chipbreaker S assists controlled fragmenting of swarf for safer evacuation. By pairing a sturdy geometry with the ceramic grade, the insert delivers reproducible engagement and helps achieve consistent surface integrity on each workpiece.

Application scope and recommended use cases

This insert is intended for hard machining applications and is optimised for hardened steels and pre‑hardened materials. The Walter CBN / hard-material series designation signals suitability for operations where high contact temperatures and abrasive wear occur. The insert is well suited to stable lathe setups and rigid toolholding; in such conditions the combination of ceramic wear resistance and the negative geometry supports extended cutting intervals and reduced tool management overhead. For tasks with frequent interruptions or heavy radial engagement, this insert’s design promotes process security and repeatability.

Practical considerations for integration into production

When integrating this indexable insert into a turning process, attention to fixture rigidity, coolant strategy and cutting parameters will maximise the grade’s advantages. Ceramic grades often perform best with stable, dry or minimal-lubrication conditions at optimised cutting speeds; however, exact parameters depend on part material and machine capabilities. The Walter Tools designation ensures the insert conforms to series specifications, and the standardised VNGA geometry simplifies reuse in compatible toolholders. For tailored parameter windows and feed recommendations, technical consultation is recommended to align the insert’s potential with specific shopfloor conditions.

For application advice and procurement of VNGA160408SM-S WCH10C inserts, contact Metav Werkzeuge for expert support and immediate availability: info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: VNGA160408SM-S-WCH10C-WALTER
• ISO designation: VNGA160408SM-S WCH10C
• Series: Walter CBN / Hartstoff
• Grade: WCH10C
• Insert form: Rhombus 35°
• Corner radius: 0,8
• Relief angle: 0° (negativ)
• Insert size: 16
• Plate thickness: 04
• Chipbreaker: S
• Tolerance class: G
• Execution: A
• Material code: H
• Manufacturer: Walter Tools

Facts

• Optimised for: hardened steels (ISO group H)
• Suitable for: pre-hardened steel machining
• Geometry angle: 35°
• Corner radius nominal: 0.8
• Relief: negative 0°
• Series designation: Walter CBN / Hartstoff

Special features

• Coated ceramic cutting grade
• High temperature resistance
• Designed for high cutting speeds
• Stable edge for interrupted cuts
• Reliable chip control with S breaker

FAQ

What materials is this insert suitable for?
The VNGA160408SM-S WCH10C insert is designed for hardened steels and pre‑hardened materials, aligning with the Walter CBN / hard-material series recommendations.

How does the negative 0° relief affect performance?
A negative 0° relief increases edge strength and resistance to chipping, which is beneficial when machining hard materials or when encountering interrupted cuts with the VNGA160408SM-S WCH10C.

Is the WCH10C grade temperature resistant for continuous turning?
Yes, the WCH10C is a coated ceramic grade formulated for elevated cutting temperatures, making it well suited to continuous high-speed operations on hard workpieces.

Which chipbreaker should be expected and what is its effect?
This insert uses the S chipbreaker, which promotes controlled chip fragmentation and reliable evacuation, supporting safer swarf management and consistent surface finish.

Can the insert be used in standard VNGA toolholders?
The geometry follows the VNGA specification, so the insert is compatible with toolholders designed for VNGA1604‑type inserts; ensure correct seat and clamping for process stability.

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

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