CNMG 120404 AH120 Wendeplatten - Tungaloy

Benefit from the combination of PVD-coated AH120 carbide reliability, the ISO-standard CNMG120404 geometry and a 0.4 mm corner radius for consistent surface quality and reduced tool changes; order directly via Metav Werkzeuge or consult our specialists for application guidance.

CNMG 120404 AH120 indexable insert for turning — Tungaloy

A CNMG120404 AH120 indexable insert designed for ISO-compliant turning, offering a sharp cutting edge and process security for external and internal turning tasks

• ISO-standard rhombic insert, 80° geometry
• PVD-coated AH120 carbide for wear resistance
• Double-sided chipbreaker for controlled chips
• 0.4 mm corner radius for precise surface finishes

Maximised process security and dependable wear performance

The combination of a PVD-coated carbide substrate and the AH120 grade delivers a balance of wear resistance and fracture tolerance that supports stable, repeatable turning. The coating reduces adhesive wear and enhances edge integrity at elevated temperatures, while the carbide core maintains mechanical strength under interrupted cuts. For machining operations where a sharp cutting edge and process reliability are required, this configuration helps to extend in-service life and maintains consistent part quality, reducing unscheduled tool changes and improving overall throughput.

Precise form and compatibility for straightforward integration

Manufactured to ISO dimensions, the rhombic 80° geometry and a 0.4 mm corner radius ensure predictable engagement with a wide range of toolholders. The insert thickness of 4.76 mm and the nominal size 12 are compatible with holders that match form, relief angle, tolerance class, clamping method, size and thickness. The presence of a cylindrical hole and the double-sided design simplify clamping and indexing, allowing efficient utilisation of available cutting edges while keeping setup times short. Clear identification of the insert code and adherence to ISO standards aid in selection and replacement across workshop systems.

Operational advantages: chip control, handling and selection guidance

The double-sided chipbreaker supports effective chip formation for a variety of turning conditions, improving evacuation and surface finish while lowering risk of built-up edge. The insert’s geometry and coating make it suitable for general turning tasks; chipbreaker choice and grade selection should be matched to the workpiece material and machining stability to extract the full productivity benefit. When paired with a correctly specified holder, the result is reduced cycle times and fewer tool interventions. If clarification is needed on holder compatibility or optimal cutting parameters, technical consultation is available to recommend the appropriate chipbreaker and cutting data.

For robust, process-secure turning with Tungaloy AH120 inserts, contact Metav Werkzeuge for technical advice or sample recommendations — eMail: info@metav-werkzeuge.com | Tel: +49 2822 7131930

Technical data

• Article number: 6811620

• SKU (manufacturer): TUN6811620

• SKU: 6811620-Tungaloy

Facts

• Insert designation: CNMG120404

• Grade: AH120

• Material: carbide

• Thickness: 4.76 mm

• Size: 12

• Corner radius: 0.4 mm

• Relief angle: 0°

• Geometry angle: 80°

Special features

• PVD coating

• Double-sided chipbreaker

• Rhombic plate form

• Cylindrical hole

• ISO turning indexable insert series

• Suitable for external and internal turning; choose chipbreaker and grade according to workpiece material and stability

FAQ

What applications are suitable for this insert?
The CNMG120404 AH120 Tungaloy indexable insert (SKU 6811620-Tungaloy) is intended for external and internal turning where a sharp cutting edge and process security are required; chipbreaker selection should be matched to the specific machining task.

How does the AH120 grade improve performance?
AH120 is a PVD-coated carbide grade that offers enhanced wear resistance and edge stability; in the CNMG120404 design this supports longer tool life and consistent surface finish under typical turning loads.

Is the insert compatible with standard ISO holders?
Yes — the insert conforms to ISO dimensions; compatibility depends on matching holder form, relief angle, tolerance class, clamping style, size and thickness as provided for the ISO turning indexable insert series.

What advantages does the double-sided chipbreaker provide?
The double-sided chipbreaker on this insert improves chip control and allows indexing to fresh edges, which reduces downtime and supports stable cutting in a range of turning operations.

How should the corner radius and geometry be selected?
The 0.4 mm corner radius of this CNMG insert is suited to precision finishes and moderate cutting forces; select radius and geometry based on desired surface quality and machine stiffness.

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.