CNMG 120408 AT9530 Wendeplatten - Tungaloy

Take advantage of the combination of an AT9530 coated cermet grade, precise 80° rhombic geometry and predictable chip control to improve surface finish and reduce tool changes; order directly via Metav Werkzeuge or consult our specialists for application-specific advice.

CNMG 120408 AT9530 Turning insert — Tungaloy

The CNMG 120408 AT9530 is an ISO-standard turning insert intended for finishing and light turning of steel components with an emphasis on surface quality and even wear.

• Coated cermet grade AT9530 for superior surface finish
• ISO CNMG 120408 form, compatible with standard holders
• Double-sided chipbreaker for stable chip control
• Rhombic insert with 0.8 mm corner radius

High-precision finishing for steel components

The insert combines a coated cermet substrate with the AT9530 grade to deliver a consistent surface finish in finishing and light machining operations. Cermet compositions offer a finer edge and reduced built-up edge compared with conventional grades, which translates into fewer reworks and more parts meeting tolerance at first pass. The emphasis on uniform wear supports predictable tool life and repeatable quality across series production, helping to stabilise cycle times and lower overall machining costs.

Compatibility and secure clamping to reduce set-up time

Designed to the ISO CNMG 120408 specification, the insert features an 80° included angle and a rhombic form that matches widely used external holders and boring bars. Compatibility with a chosen holder depends on form, clearance angle, tolerance class, clamping method, size and thickness; the available dimensions — including a 4.76 mm plate thickness and 12 mm size — ensure secure seating and repeatable positioning. Clear geometry and standardisation reduce set-up complexity and minimise the risk of incorrect assembly, which supports steady production flow.

Stable chip control and process reliability for smoother production

Chip formation is controlled by a double-sided chipbreaker, engineered for finishing conditions to produce short, manageable chips and consistent cutting forces. The 0° clearance angle and 0.8 mm corner radius are matched to light-turning tasks where surface integrity and dimensional accuracy matter. Made from carbide with a dedicated coating system, the insert is optimised for steel machining and enables reliable performance in applications where surface quality and tool-life predictability are priorities rather than aggressive material removal rates.

For finishing applications on steel, choose the Tungaloy AT9530 grade and contact Metav Werkzeuge to confirm holder compatibility or request machining recommendations — Metav Werkzeuge is available by e-mail at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical Data

• Article number: 6773682
• Manufacturer SKU: TUN6773682
• Model series: ISO-Drehwendeschneidplatten
• WPL designation: CNMG120408

Core technical data

• Size: 12 mm
• Plate thickness: 4.76 mm
• Corner radius: 0.8 mm
• Included angle: 80°
• Clearance angle (relief): 0°
• Hole: with cylindrical hole

Special features

• Coating / grade: AT9530
• Material: carbide
• Insert shape: rhombic (CNMG)
• Chipbreaker: double-sided
• Application: turning, finishing and light machining of steel
• System components: ISO insert, holder/boring bar, clamp/clip and replacement screws

FAQ

What material applications suit this insert?
The CNMG 120408 AT9530 insert is optimised for machining steel in finishing and light-turning operations, offering good surface quality and steady wear behaviour.

What are the main dimensions and geometry of the insert?
Key dimensions are 12 mm size, 4.76 mm thickness, 0.8 mm corner radius and an 80° included angle, with a 0° clearance angle and a cylindrical mounting hole.

How does the insert achieve stable chip control?
Chip control is provided by a double-sided chipbreaker designed for finishing cuts; this encourages predictable chip formation and reduced cutting force fluctuations.

Is the insert compatible with standard toolholders?
The insert conforms to the ISO CNMG 120408 form; compatibility is determined by form, clearance angle, tolerance class, clamping and thickness, so standard CNMG holders will typically accept the insert.

Can this insert be used for heavy roughing operations?
This grade is targeted at finishing and light machining; for heavy roughing a more robust grade and an alternative chipbreaker suited to high material removal should be selected.

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.