CNMG 120408 AH8005 Wendeplatten - Tungaloy

Benefit from the combination of a PVD-coated AH8005 carbide grade and the ISO CNMG120408 geometry for stable, wear-resistant turning of heat-resistant alloys; order the insert via Metav Werkzeuge or consult our application specialists for grade and holder matching.

CNMG120408 AH8005 Tungaloy indexable insert for turning

The CNMG120408 AH8005 Tungaloy insert is an ISO-standard rhombic 80° carbide cutting insert designed for external and internal turning in stable machining applications.

• ISO CNMG 120408 geometry
• PVD-coated carbide AH8005
• 80° rhombic with 0.8 mm radius
• Double-sided chipbreaker
• Cylindrical clamping hole

Consistent geometry for reliable turning results

The ISO CNMG120408 form delivers a predictable cutting angle and contact geometry that supports stable tool behaviour and repeatable component quality. The 80° rhombic shape with a 0.8 mm corner radius is suited to finishing and semi-finishing passes where a balance of strength and edge definition is required. Because the insert is double-sided, two productive cutting edges are available per index, reducing tooling costs and changeover frequency. The standardised dimensions also mean straightforward matching to ISO-compatible holders, so tool-change procedures remain fast and consistent, maintaining uptime in batch and continuous production.

Coating and substrate engineered for demanding materials

The AH8005 grade combines a wear-resistant PVD-coated carbide substrate formulated for elevated temperatures and abrasive conditions. The PVD coating improves thermal resistance and reduces built-up edge tendency when machining heat-resistant alloys and harder steels, resulting in longer edge life under stable machining regimes. This grade is particularly effective where sequence reliability and surface finish are priorities; the coating supports higher metal-removal rates compared with uncoated grades while maintaining dimensional stability. In practical terms, choosing this insert helps to extend intervals between index changes and contributes to predictable tool consumption in series production.

System compatibility and practical handling benefits

Designed to fit the ISO indexable system, the insert’s dimensions—12 mm nominal size and 4.76 mm thickness—and the cylindrical clamping hole facilitate secure mounting in compatible external holders and boring bars. The rhombic plate form ensures access to internal features where an 80° approach is beneficial, and the double-sided layout gives economical edge usage. Selecting the correct chipbreaker and grade to suit workpiece material and machining stability will optimise chip control and surface finish. Overall, the standardised format and robust grade simplify inventory management and support efficient process planning in mixed-production environments.

For reliable, high-temperature turning specify the Tungaloy AH8005 CNMG120408 insert and contact Metav Werkzeuge for availability and application advice at info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 6775758
• Manufacturer SKU: TUN6775758
• SKU: 6775758-Tungaloy
• Manufacturer: Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Material: carbide
• Grade: AH8005

Facts

• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Insert angle: 80°
• Clearance angle: 0°

Special features

• ISO CNMG 120408 geometry
• PVD-coated carbide AH8005
• Double-sided chipbreaker
• Rhombic plate form
• Cylindrical clamping hole
• Intended application: turning
• Compatible with ISO-standard holders

FAQ

What applications is this insert suitable for?
The CNMG120408 AH8005 Tungaloy indexable insert is intended for external and internal turning, especially when machining heat-resistant alloys and harder materials under stable cutting conditions.

How does the AH8005 grade improve tool life?
The AH8005 PVD-coated carbide substrate on the CNMG120408 insert enhances thermal resistance and wear performance, which helps to extend edge life compared with uncoated grades during demanding turning operations.

Can the insert be used on internal boring bars?
Yes, the rhombic 80° geometry and the cylindrical clamping hole make the insert compatible with ISO-standard holders and suitable for internal turning where the approach angle is appropriate.

What dimensions should be checked to ensure holder compatibility?
Confirm the insert size (12 mm), thickness (4.76 mm) and ISO designation CNMG120408; these determine fitment in matching external holders or boring bars.

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.