CNMG 120408 AH8015 Wendeplatten - Tungaloy

Benefit from the balanced wear resistance and edge stability of the PVD-coated AH8015 carbide grade combined with ISO CNMG geometry for reliable turning performance. The double-sided, rhombic insert with a 0.8 mm corner radius, 0° clearance and cylindrical hole offers flexible compatibility with standard holders. Order directly via Metav Werkzeuge or consult our specialists for application advice.

CNMG120408 AH8015 Tungaloy turning insert — PVD-coated carbide, 0° clearance

A CNMG120408 AH8015 ISO-standard rhombic turning insert designed for external and internal turning of heat‑resistant alloys

• PVD-coated cemented carbide grade AH8015
• ISO CNMG geometry for standard holders
• Double-sided chipbreaker design
• 0.8 mm corner radius for versatile results

Balanced wear resistance and stable cutting edge for heat‑resistant alloys

The PVD-coated AH8015 grade combines surface hardness with a ductile substrate to deliver wear resistance and cutting-edge stability during demanding turning operations. The thin, adherent PVD coating reduces built-up edge and improves thermal resistance at the cutting zone, which is particularly beneficial when machining heat‑resistant alloys. This balance helps extend tool life and maintain consistent surface quality over successive indexings of the insert.

ISO compatibility and clear system guidance for secure mounting

The ISO CNMG geometry ensures straightforward use in standard indexable‑insert holders; compatibility depends on holder form, relief/clearance angle, tolerance class, fastening method, size and thickness. The insert’s 0° clearance and rhombic shape demand matching seat geometry and screw/clamp configuration. The presence of a cylindrical hole facilitates positive location in many clamping systems. Confirm that the holder supports the CNMG120408 footprint and the 4.76 mm plate thickness for reliable clamping and repeatable positioning.

Practical performance: double‑sided chipbreaker and corner radius benefits

A double-sided chipbreaker provides flexibility for different cutting directions and prolongs indexable life, while the 0.8 mm corner radius balances edge strength with the ability to produce fine surface finishes. In stable setups, the grade is a first choice for general turning of higher‑temperature alloys where edge security and predictable flank wear are required. The rhombic form plus chipbreaker selection allow effective chip control in both external and internal turning operations without sacrificing dimensional accuracy.

Choosing chipbreaker, holder and machining parameters with confidence

Selection of chipbreaker and machining parameters should match the workpiece material, cut depth and machine rigidity. The insert is supplied as part of an indexable system: ISO insert, suitable external holder or boring bar, shim/clamping set and replacement screws. Choose the chipbreaker and grade according to the metal, the type of cut and the stability of the setup to maximise productivity and tool life. Where in doubt, favour increased rigidity and reduced overhang to exploit the balanced properties of the AH8015 grade.

For availability and expert technical advice on Tungaloy turning inserts contact Metav Werkzeuge: info@metav-werkzeuge.com | +49 2822 7131930

Technical data

• Article number: 6741640
• Manufacturer SKU: TUN6741640
• Item SKU: 6741640-Tungaloy
• Model series: ISO-Drehwendeschneidplatten

Facts

• Corner radius: 0.8 mm
• Thickness: 4.76 mm
• Size: 12 mm
• Relief/clearance angle: 0°
• Hole style: cylindrical

Special features

• Grade: AH8015
• Coating: PVD
• Material: carbide
• Shape: rhombic
• Chipbreaker: double-sided
• Hole: with cylindrical hole
• Application: turning
• System components: ISO insert, holder, shim/clamping set, replacement screws

FAQ

Which materials is this insert intended for?
The AH8015 grade is specified for general machining of heat‑resistant alloys, offering a balanced combination of wear resistance and edge stability suitable for demanding turning tasks.

How can compatibility with an existing holder be verified?
Compatibility is determined by the holder’s form, relief/clearance angle, tolerance class, fastening method, size and plate thickness; confirm the seat matches the CNMG120408 geometry and the 4.76 mm thickness.

What advantage does the PVD coating provide?
A PVD-coated surface increases hardness and reduces adhesion at the cutting edge, improving thermal resistance and helping to control wear during continuous turning cycles.

Is the chipbreaker suitable for various turning operations?
The double-sided chipbreaker configuration permits flexible chip control in different cutting directions and is appropriate for both external and internal turning when matched with the proper machining parameters.

What does the CNMG120408 designation mean for tool selection?
The CNMG120408 designation identifies the ISO rhombic insert geometry, 12 mm size and plate thickness class; this helps ensure correct selection of compatible holders and clamping components.

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.