CNMG 090408 AH120 Wendeplatten - Tungaloy

Benefit from the combination of PVD-coated carbide AH120 and the CNMG 80° rhombic geometry for reliable edge stability and consistent turning performance; order the inserts directly via Metav Werkzeuge or consult the team for technical advice.

CNMG 090408 AH120 — Indexable Turning Insert for Turning (Tungaloy)

CNMG090408 AH120 is an ISO-standard rhombic indexable insert for external and internal turning, designed for process-secure machining and sharp cutting-edge retention.

• ISO rhombic insert CNMG 80° geometry
• PVD-coated carbide grade AH120
• 0° clearance angle for stable cutting
• Double-sided chipbreaker, r0.8, 4.76 mm thick

Consistent machining through a wear-resistant grade

The PVD-coated carbide grade AH120 combines wear resistance with fracture toughness, making it suitable where a sharp cutting edge and process security are required. The coating reduces adhesive wear and prolongs edge life under varying cutting conditions. For operations such as finishing or medium-depth turning, the coated cemented carbide substrate delivers predictable tool life and repeatable part quality, supporting stable cycle times and fewer tool changes.

Geometry engineered for flexible turning tasks

The 80° rhombic geometry offers a wide application window for both external and internal turning; the 0° clearance angle contributes to a constant contact line and improved surface finish on many steels. With a corner radius of 0.8 mm and a plate thickness of 4.76 mm, the insert balances edge strength and form accuracy. The central cylindrical hole and ISO-compliant shape ensure straightforward compatibility with common CNMG holders when form, chipbreaker and tolerances are matched.

Productivity gains from effective chip control and economy

Equipped with a double-sided chipbreaker, this insert provides two usable cutting edges per side, which enhances cost efficiency and reduces downtime for index changes. The design supports controlled chip formation across a spectrum of cutting parameters, lowering the risk of built-up edge and enabling more stable feeds. In practice, this leads to improved surface integrity and more predictable finishing passes without extra process complexity.

For turning applications that prioritise edge stability and process security, contact Metav Werkzeuge for availability of the Tungaloy CNMG090408 AH120 insert and tailored machining advice — eMail: info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6793699
• Manufacturer SKU: TUN6793699
• SKU: 6793699-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Product designation: CNMG090408 AH120 Tungaloy-Wendeplatte

Core data

• Geometry angle: 80°
• ISO code: 090408
• Plate size: 09
• Plate thickness: 4.76 mm
• Corner radius: 0.8 mm
• Clearance angle: 0°
• Hole: with hole (cylindrical)

Special features

• Material: cemented carbide
• Coating / grade: AH120 (PVD-coated)
• Chipbreaker: double-sided
• Plate form: rhombic
• Typical application: turning
• Compatibility: ISO-standard holders and adapters

FAQ

What materials is this insert suitable for?
The CNMG090408 AH120 insert is a PVD-coated cemented carbide grade optimised for a wide range of steels and common turning applications where edge integrity and wear resistance are important.

How does the geometry influence machining performance?
The 80° rhombic form provides a versatile cutting edge for external and internal turning; combined with the 0° clearance angle it supports stable contact and improved surface finish in many turning operations.

How many usable edges does the insert provide?
This rhombic indexable insert features a double-sided chipbreaker and provides multiple usable edges; the design enhances economy by allowing reindexing before disposal.

Which holders are compatible with this insert?
Compatibility depends on holder form, clearance, tolerance class and attachment method; the insert follows ISO CNMG dimensions and fits ISO CNMG holders when those parameters match.

What is the corner radius and how does it affect results?
The corner radius is 0.8 mm; a larger radius increases edge strength and surface integrity, making the insert suitable for medium-feed finishing and stable roughing where a balance between strength and profile accuracy is required.

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.