CNMG 120408 AH8005 Wendeplatten - Tungaloy

Benefit from the combination of a PVD‑coated carbide grade AH8005, a 0.8 mm corner radius and the 80° rhombic geometry for stable, high‑temperature turning; order directly via Metav Werkzeuge or consult our application specialists for process optimisation.

CNMG120408 AH8005 CNMG turning insert, PVD‑coated carbide — Tungaloy

The CNMG120408 AH8005 is an ISO‑standard, double‑sided indexable insert designed for external and internal turning of heat‑resistant alloys and other hard materials.

• PVD‑coated carbide grade AH8005
• For heat‑resistant alloys and hard materials
• Rhombic CNMG 80° geometry, 0° rake
• Double‑sided with cylindrical hole

Precision and process security for demanding turning

The insert combines a PVD coating with the wear‑resistant AH8005 carbide grade to extend tool life under thermal and mechanical load. The PVD coating forms a hard surface layer that reduces abrasion and increases thermal resistance, which means fewer tool changes and more consistent part quality during prolonged cycles. In practice, this leads to stable chip formation and reliable dimensional retention, especially when machining heat‑resistant alloys where elevated temperatures and abrasive wear are common. The construction supports productive machining in stable setups and contributes to reproducible production results.

Compatibility, clamping and geometric benefits

Supplied as an ISO CNMG insert, the component conforms to standard indexable insert dimensions; compatibility with a toolholder depends on form, clearance angle, tolerance class, fastening method, size and plate thickness. The ISO CNMG 120408 geometry and the 0° rake angle are optimised for robust cutting edges and predictable cutting forces, while the 4.76 mm thickness provides rigidity in the clamped assembly. The rhombic shape and the 0.8 mm corner radius help balance edge strength with cutting edge contact length, making the insert suitable for both finishing and light roughing when process parameters are matched. Inserts are mounted with the corresponding clamping sets and screws in standard CNMG holders for straightforward assembly.

Material range, chip control and application notes

The grade is intended for machining heat‑resistant alloys and hard materials, where high temperature stability and edge integrity are required. The double‑sided design increases utilisation rate, while the cylindrical hole ensures a secure, repeatable location in the clamping seat. For best results, select a chipbreaker and grade matched to workpiece material, machining type and machine stability; a suitable chipbreaker will aid evacuation and reduce rework. The insert is applied in conventional turning tasks—external and internal operations—where process security and reproducible surface quality are priorities.

For ordering and precise application advice on Tungaloy AH8005 inserts, contact Metav Werkzeuge — info@metav-werkzeuge.com or +49 2822 7131930 — for tailored recommendations and immediate availability

Technical data

• Article number: 6741633
• Manufacturer SKU: TUN6741633
• Dealer SKU: 6741633-Tungaloy
• Model series: ISO‑Drehwendeschneidplatten
• Grade: AH8005
• Material: carbide

Core data

• Insert designation: CNMG120408
• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Geometry angle: 80°
• Rake (clearance) angle: 0°

Features

• Rhombic CNMG insert
• Double‑sided cutting edges
• Cylindrical hole for secure locating
• PVD‑coated carbide grade AH8005
• Suited for turning of heat‑resistant alloys and hard materials
• ISO‑standard indexable plate

FAQ

What materials is this insert best suited for?
The CNMG120408 AH8005 Tungaloy turning insert (SKU 6741633‑Tungaloy) is designed primarily for heat‑resistant alloys and other hard materials where high thermal stability and wear resistance are needed.

Is this insert compatible with standard CNMG holders?
Yes, the ISO CNMG 120408 geometry and the cylindrical locating hole make the insert compatible with standard CNMG holders, provided form, clearance angle, tolerance class, fastening and thickness are matched.

Can both sides of the insert be used?
The indexable plate is double‑sided; both cutting edges are usable, which increases the effective life per insert before disposal or reconditioning.

What is the corner radius and how does it affect cutting?
The corner radius is 0.8 mm; a larger radius increases edge strength and improves surface finish potential but raises cutting forces, so feed and stability should be adjusted accordingly.

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.