CNMG 120408 KS05F Wendeplatten - Tungaloy

Take advantage of the combination of a KS05F wear-resistant grade, rhombic CNMG geometry with an 80° included angle and a compact corner radius 0.8 mm for reliable external and internal turning; order directly via Metav Werkzeuge or consult our technical team for application-specific advice.

CNMG 120408 KS05F Tungaloy indexable insert for turning

CNMG120408 KS05F Tungaloy indexable insert designed for precision turning applications, offering a balanced combination of wear resistance, edge stability and compatibility with ISO-standard holders.

• ISO CNMG format for standardized clamping
• KS05F wear-resistant Tungaloy grade
• Double-sided chipbreaker for extended use
• Cylindrical hole for secure clamping

Product design optimised for productive turning

The rhombic CNMG geometry with an 80° included angle provides a stable cutting orientation that is well suited to both external and internal turning operations. Manufactured from cemented carbide, the insert is engineered with a focus on predictable wear behaviour and edge robustness; the KS05F grade complements the geometry by combining hardness and fracture resistance to maintain cutting performance over longer cycles. The corner radius 0.8 mm enables fine control of surface finish and tool engagement, reducing vibration in less rigid setups.

Practical handling and secure clamping for consistent results

A cylindrical hole and precise plate thickness of 4.76 mm allow secure and repeatable fixture in compatible holders; the insert is double-sided, enabling flip-over replacement to save tool costs and reduce machine downtime. Compatibility with a holder is determined by form, clearance angle, tolerance class, fastening method, nominal size and thickness, so matching the insert to the correct external holder or boring bar is essential for safe and repeatable operation. The neutral 0° clearance angle specification ensures a predictable contact geometry with many common clamping systems.

Material behaviour and chip control for reliable machining

The integrated double-sided chipbreaker geometry supports effective chip control across a range of steels and alloyed materials when paired with appropriate cutting data; selecting coolant feed and feed per revolution according to workpiece material optimises surface quality and tool life. As part of an ISO series of indexable plates, the insert works within a systematic approach of holder, shim and clamping set, enabling straightforward replacement and consistent process parameters across production batches. This combination supports a cost-effective, high-uptime machining strategy.

Contact Metav Werkzeuge for availability, application matching and tooling bundles — email info@metav-werkzeuge.com or call +49 2822 7131930 for personalised advice and rapid supply

Technical data

• Article number: 6859036
• SKU: 6859036-Tungaloy
• Manufacturer item number: TUN6859036
• Model series: ISO-Drehwendeschneidplatten
• Material: Hartmetall

Facts

• Corner radius: 0.8 mm
• Plate thickness: 4.76 mm
• Size: 12 mm
• Included angle: 80°
• Clearance angle: 0°

Special features

• ISO designation: CNMG120408
• Grade: KS05F (Tungaloy)
• Double-sided chipbreaker
• Cylindrical hole for clamping
• Rhombic plate form
• Intended application: Drehen (turning)
• Compatibility determined by form, clearance angle, tolerance class, fastening, size and thickness

FAQ

What materials is this insert suitable for?
The CNMG120408 KS05F Tungaloy indexable insert is designed for general turning and, depending on cutting data, performs well on a broad range of steels and alloyed materials due to the KS05F grade balancing wear resistance and toughness.

Can the insert be used on both external and internal turning operations?
Yes. The rhombic geometry and 80° included angle make the insert suitable for both external and internal turning when mounted in the correct ISO-compatible holder.

Is the insert reversible to extend tool life?
Yes. The double-sided chipbreaker design allows the insert to be flipped and reused, effectively doubling the available cutting edges per plate.

How does the corner radius affect surface finish?
A corner radius of 0.8 mm provides a compromise between robustness and surface quality; smaller radii improve detail but can reduce edge strength, while 0.8 mm offers consistent finish with enhanced edge stability.

What should be checked when selecting a holder for this insert?
Check holder compatibility against the insert form, the 0° clearance angle, tolerance class, fastening type, nominal size and plate thickness to ensure secure clamping and correct cutting geometry.

Manufacturer/Responsible: Tungaloy-NTK Germany GmbH, Katzbergstraße 3a, 40764 Langenfeld - Protected trademarks and product names are the property of their respective owners. Brand names and protected trademarks are mentioned solely for explanatory purposes. There is no affiliation between our company and the mentioned brands. The item offered is an original, brand-new product from the manufacturer.