CNMG 090408 AH120 Wendeplatten - Tungaloy

Benefit from a stable cutting edge and predictable tool life thanks to the PVD-coated carbide grade and the precise 0.8 mm nose radius; the ISO CNMG090408 form delivers reliable performance for external and internal turning. Order the insert directly via Metav Werkzeuge or consult our specialists if specific application advice is required.

CNMG090408 AH120 ISO turning insert — PVD-coated carbide, 0.8 mm radius (Tungaloy)

The CNMG090408 AH120 is an ISO-standard rhombic turning insert designed for robust external and internal turning, featuring a double-sided chipbreaker and a cylindrical hole for secure clamping.

• PVD-coated carbide grade AH120
• 0.8 mm nose radius for precise finishes
• ISO CNMG090408 rhombic form
• Double-sided chipbreaker for flexible indexing
• Cylindrical-hole mounting for stable clamping

Consistent cutting performance for reduced cycle times

The insert combines a PVD-coated surface with a carbide substrate to enhance wear resistance and maintain a sharp edge under cyclic loads. The wear- and break-resistant AH120 grade is engineered for situations where a fine cutting edge and process security are required; this results in longer intervals between indexing and predictable component tolerances. The defined 0.8 mm nose radius helps to balance surface finish and tool strength, while the 80° lead angle contributes to controlled cutting forces and dimensional stability.

Practical compatibility and straightforward handling

As an ISO-conforming rhombic insert, compatibility with toolholders is determined by form, relief angle, tolerance class, clamping style, size and thickness. The 0° relief angle and rhombic form enable versatile mounting in a wide range of standard external and internal holders. The insert’s double-sided chipbreaker allows two indexable cutting edges per insert, reducing tooling costs and machine downtime. The cylindrical mounting hole ensures repeatable clamping and simple replacement during production.

Application focus and process security

Designed primarily for turning operations, the insert supports both roughing and finishing tasks when the correct chipbreaker and grade are chosen to match the work material and machining conditions. The PVD coating improves resistance to abrasive wear and helps to control built-up edge formation at higher cutting speeds. Where a sharp edge and process security are priorities, this grade offers a good compromise between edge stability and productivity, helping to deliver consistent surface quality.

Ease of selection and operational support

Selecting the right insert geometry and chipbreaker for a given workpiece material will influence cycle time and component quality more than any single specification. The ISO designation simplifies ordering and replacement, while the documented 0.8 mm radius and 4.76 mm thickness provide the measurable parameters needed for CAM setups and tool libraries. If further technical data is required—such as recommended cutting parameters for a specific material—application engineering can advise on the optimal chipbreaker and cutting regime to suit the machining stability available.

For Tungaloy inserts and tailored advice on integrating CNMG090408 AH120 into production, contact Metav Werkzeuge for availability and application consultation at info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 6750466
• Manufacturer SKU: TUN6750466
• SKU: 6750466-Tungaloy
• Model series: ISO turning inserts
• Material: Carbide
• Grade/coating: AH120, PVD-coated

Dimensions & key figures

• Corner radius: 0.8 mm
• Thickness: 4.76 mm
• Size: 09
• Relief angle: 0°
• Lead angle: 80°

Special features

• Rhombic insert form
• Double-sided chipbreaker
• Cylindrical hole for clamping
• Suitable for external and internal turning
• ISO CNMG090408 designation
• Wear- and break-resistant AH120 grade
• Compatibility dependent on form, relief, tolerance, clamping, size and thickness

FAQ

What holder types are compatible with this insert?
Compatibility is determined by the insert’s rhombic form, 0° relief angle, tolerance class, clamping method, size and thickness; ISO-standard external holders designed for CNMG inserts fit this geometry.

Is this insert suitable for finishing applications?
Yes. The combination of 0.8 mm nose radius and the PVD-coated carbide grading makes the insert suitable for finishing where a sharp edge and consistent surface quality are required.

How many cutting edges are usable per insert?
The double-sided chipbreaker provides two indexable cutting edges, enabling cost-effective indexing and minimised downtime.

What does the AH120 grade offer in practice?
AH120 is a wear‑ and break‑resistant grade designed for situations demanding both a sharp cutting edge and high process security, supporting consistent tool life in stable turning conditions.

Which mounting feature ensures repeatability during tool changes?
The cylindrical hole in the insert ensures secure and repeatable clamping, simplifying replacement and maintaining positional accuracy.

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.