CNMG 120404 GH330 Wendeplatten - Tungaloy

Take advantage of the combination of robust carbide construction, a GH330 cutting grade tuned for wear resistance and toughness, and a 0.4 mm corner radius that supports stable cutting; order the insert via Metav Werkzeuge or consult our specialists for application guidance.

CNMG120404 GH330 indexable turning insert by Tungaloy — ISO 120404, rhomboid, with cylindrical hole, 80° main angle

The CNMG120404 GH330 is an ISO-standard indexable insert for turning, designed for secure clamping in ISO holders and optimised for balanced wear resistance and edge stability in routine and demanding turning operations.

• ISO indexable turning insert CNMG120404
• GH330 grade for balanced wear and toughness
• 0.4 mm corner radius for stable machining
• Double-sided chipbreaker with cylindrical hole

Consistent cutting performance through optimised grade and carbide substrate

The combination of a carbide substrate and the GH330 cutting grade delivers a technical balance between wear resistance, toughness and cutting-edge stability. This composition reduces unexpected edge failure and supports predictable tool life under varying process conditions. For production planning, the result is fewer unplanned tool changes and steadier component quality; the graded performance is particularly noticeable where repeated, stable cutting edges are essential for batch consistency.

Fast integration and reliable clamping in ISO systems

Built to the ISO model series, the insert’s compatibility with holders is determined by form, clearance angle and tolerance class, as well as clamping method, size and thickness. The rhomboid geometry with an included angle of 80° and a cylindrical hole simplifies mechanical locating and clamping reliability. This clarity of fit reduces set-up ambiguity and shortens changeover times when matching the insert to standard external holders or boring bars.

Improved chip control and edge security for turning tasks

The double-sided chipbreaker geometry and the 0.4 mm corner radius combine to moderate chip formation and protect the cutting edge during both light passes and more aggressive cuts. The geometry supports controlled chip flow and reduces the risk of entanglement in internal turning, while the zero-degree clearance and robust thickness help to maintain edge condition under interrupted or unstable cuts. The outcome is fewer surface defects and more consistent dimensional results.

System-oriented use and practical production benefits

Use the insert as part of a system comprising an ISO indexable insert, a matched external holder or boring bar, a shim/clamp set and replacement screws. With a 4.76 mm plate thickness and 12 mm insert size, the component integrates into common turning toolchains while offering the machining advantages of a Tungaloy cutting grade selected to complement geometry with wear resistance and toughness. The design supports both internal and external turning applications where repeatable performance and straightforward indexing are priorities.

For reliable, repeatable turning with the GH330 grade, contact Metav Werkzeuge for tailored application advice and availability of Tungaloy CNMG120404 inserts: info@metav-werkzeuge.com | +49 2822 7131930

Technical data

• Article number: 6802000
• SKU: 6802000-Tungaloy
• Manufacturer SKU: TUN6802000
• Designation: CNMG120404 GH330 Tungaloy indexable insert

Facts

• Corner radius: 0.4 mm
• Thickness: 4.76 mm
• Insert size: 12 mm
• Clearance angle: 0°
• Included angle: 80°
• ISO code: 120404

Special features

• Material: carbide
• Rhomboid (CNMG) insert geometry
• Double-sided chipbreaker
• Cylindrical hole for secure locating
• Grade: GH330 (Tungaloy cutting grade)
• Intended use: turning
• ISO-standardised indexable insert series
• System components: insert, outer holder or boring bar, shim/clamp set, replacement screws

FAQ

What materials is this insert best suited for?
The CNMG120404 GH330 Tungaloy indexable insert (SKU 6802000-Tungaloy) is delivered in a GH330 grade that complements geometry with wear resistance and toughness; select the chipbreaker and cutting data to match the specific workpiece material for optimal results.

Is the insert single-sided or indexable on both sides?
This insert features a double-sided chipbreaker and can be indexed, providing two usable cutting edges per side where the holder and clamping system support indexing.

How is compatibility with toolholders determined?
Compatibility depends on form, clearance angle, tolerance class, clamping method, size and thickness; the CNMG120404 geometry and its ISO conformity facilitate matching with standard external holders and boring bars.

What are the key edge and dimensional specifications?
Key specifications include a 0.4 mm corner radius, 4.76 mm plate thickness and a 12 mm insert size, with an included angle of 80° and a clearance angle of 0°.

Can this insert be used for internal and external turning?
Yes; the design and chipbreaker arrangement of the CNMG120404 GH330 insert make it suitable for both external and internal turning operations when paired with the appropriate holder and cutting parameters.

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.