CNMG 120404 AH120 Wendeplatten - Tungaloy

Take advantage of a wear-resistant, PVD-coated carbide grade and precise ISO geometry for reliable turning operations; order directly via Metav Werkzeuge or consult the technical team for application advice.

CNMG 120404 AH120 ISO turning indexable insert — PVD-coated carbide, 80° rhombic

CNMG 120404 AH120 is an ISO-format turning indexable insert designed for external and internal turning in standard ISO systems, offering a sharp cutting edge and process-stable performance.

• PVD-coated carbide AH120 for long tool life
• 80° rhombic geometry for universal turning tasks
• 0.4 mm nose radius for precise radii
• Cylindrical hole for secure clamping
• Double-sided chipbreaker for reproducible chips

Consistent wear resistance for uninterrupted production

The combination of PVD-coated surface treatment and a carbide substrate in grade AH120 provides a balance of wear resistance and edge toughness that reduces unscheduled tool changes. The protective coating minimises adhesion and abrasive wear, while the substrate offers fracture resistance under interrupted cuts, delivering measurable improvements in process stability. This translates into longer periods between indexings and fewer spindle stops, supporting a smoother production flow and predictable component quality.

ISO compatibility and secure clamping for error-free setup

The insert conforms to ISO dimensions and must be matched to a compatible holder based on form, relief angle, tolerance class, clamping method, size and thickness. The 80° rhombic geometry and cylindrical hole enable reliable seating in standard ISO turning holders; the 0° relief angle and plate thickness of 4.76 mm ensure robust support during heavy cuts. Explaining ISO briefly: it standardises insert shape and size so that tooling systems from different manufacturers remain interchangeable, simplifying inventory and reducing setup errors.

Practical advantages at the machine: chip control and edge definition

Featuring a double-sided chipbreaker and a 0.4 mm nose radius, this insert supports controlled chip formation and fine surface finishes in finishing and light- to medium-duty turning. The double-sided chipbreaker allows economical use of the insert by turning it to a fresh edge when required. Select a chipbreaker and grade matched to workpiece stability and material; where a sharp edge and reliable cutting action are essential, the AH120 grade delivers both edge stability and consistent results. For interrupted cuts or unstable setups, prioritise the grade’s fracture resistance to prevent edge breakouts.

Contact Metav Werkzeuge for application support and sample availability — email info@metav-werkzeuge.com or call +49 2822 7131930 for specific recommendations and compatibility checks

Technical Data

• Article number: 6802010
• Manufacturer SKU: TUN6802010
• Item SKU: 6802010-Tungaloy
• Label: CNMG120404 AH120 Tungaloy indexable insert
• Material: Carbide (cemented carbide)
• Model series: ISO turning indexable inserts

Facts

• Inscribed angle: 80°
• Thickness: 4.76 mm
• Size code: 12
• Nose radius: 0.4 mm
• Relief angle: 0°

Special features

• PVD-coated carbide grade AH120
• Rhombic insert form
• Cylindrical hole for clamping
• Double-sided chipbreaker
• Compatible with ISO-standard external holders and boring bars
• Suitable for external and internal turning; select chipbreaker to match material and stability

FAQ

What applications is this insert intended for?
This insert is intended for turning operations; the CNMG 120404 AH120 insert from Tungaloy is suitable for both external and internal turning where a sharp cutting edge and process stability are required.

How does the AH120 grade affect tool life?
The AH120 grade features a PVD-coated carbide construction that delivers wear resistance and fracture toughness; therefore the CNMG 120404 AH120 insert commonly achieves longer intervals between indexings compared with uncoated grades.

Which holders are compatible with this insert?
Compatibility is determined by the ISO geometry: holders that accept CNMG 120404 format inserts with an 80° rhombic pocket and a cylindrical clamping arrangement will be compatible when form, relief angle, tolerance class, size and thickness match.

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.