CNMG 120408 GH330 Wendeplatten - Tungaloy

Reliable wear resistance and consistent edge stability from the GH330 grade combine with the proven CNMG rhombic format and a 0.8 mm nose radius to deliver reproducible turning results; the double-sided chipbreaker and cylindrical hole reduce inventory needs while ensuring secure clamping. Choose this insert for steady productivity and predictable tool life — order the CNMG120408 GH330 insert directly via Metav Werkzeuge or consult our specialists for tailored application advice.

CNMG120408 GH330 ISO turning insert for turning – Tungaloy

The CNMG120408 GH330 is an ISO‑standard rhombic turning insert made for external and internal turning tasks, combining a robust carbide substrate with a balanced grade for wear resistance and edge toughness.

• ISO‑standard rhombic insert CNMG 120408
• GH330 Tungaloy carbide grade for turning
• Double‑sided chipbreaker, cylindrical hole
• 0.8 mm nose radius; 4.76 mm plate thickness

Consistent cutting performance for reliable cycle times

The combination of an ISO-standard rhombic geometry and the GH330 Tungaloy grade gives a balance between wear resistance and toughness that stabilises cutting edge life; this directly reduces unplanned tool changes and supports predictable cycle times. The carbide substrate provides rigidity necessary for moderate to heavy turning passes, and the double‑edged format multiplies available cutting edges per insert, improving cost efficiency per cutting edge. These technical attributes translate into measurable productivity gains across batch and single‑piece production where repeatability is essential.

Seamless integration with standard tool systems

Compatibility is determined by form, clearance angle, tolerance class, fastening method, size and thickness — the rhombic CNMG shape and 80° included angle match widely used holders. A cylindrical hole supports positive location and secure clamping in indexable toolholders, while the 0° relief angle suits many conventional turning set‑ups. Selecting the correct chipbreaker and grade according to workpiece material and machine stability ensures secure performance; this insert’s dimensions and hole style keep retrofitting effort to a minimum and reduce the need for specialised clamping components.

Geometry tuned for surface finish and chip control

The 0.8 mm nose radius is a practical compromise between strength and surface quality: it promotes smoother finishes than sharper tips while maintaining edge robustness for interrupted or semi‑finishing cuts. The 4.76 mm thickness contributes to insert rigidity, reducing vibration and improving dimensional consistency. The double‑sided chipbreaker assists chip control by producing predictable chip forms and reducing the risk of entanglement; explained simply, a chipbreaker shapes and breaks the chip to protect the tool, the workpiece and the machine, which supports safer, cleaner machining.

Practical application guidance and support

Intended specifically for turning, the insert works best when the chipbreaker and grade are matched to the workpiece material and machining strategy. The GH330 variety complements geometrical choices by supplying a middle ground of hardness and toughness, suitable for a wide range of conventional turning tasks. If uncertainty exists about holder compatibility, optimal cutting parameters or expected tool life, technical advice is available to define the best chipbreaker and insert combination for the component and machine setup. For direct enquiries, Metav Werkzeuge provides application support by email or phone.

Contact Metav Werkzeuge for tailored application advice on the CNMG120408 GH330 and assistance with holder compatibility — email info@metav-werkzeuge.com or call +49 2822 7131930 for specialist guidance.

Technical Data

• Article number: 6802094
• Manufacturer SKU: TUN6802094
• SKU: 6802094-Tungaloy
• ISO designation: 120408

Facts

• Plate size: 12 mm
• Nose radius: 0.8 mm
• Plate thickness: 4.76 mm
• Included angle: 80°
• Relief angle: 0°

Special features

• Material: carbide
• Grade: GH330 (Tungaloy)
• Plate form: rhombic (CNMG)
• Hole: with cylindrical hole
• Chipbreaker: double‑sided
• Application: turning
• Compatibility: ISO‑standard holders

FAQ

What turning tasks is this insert designed for?
The CNMG120408 GH330 Tungaloy insert is designed for external and internal turning operations where a balanced blend of wear resistance and toughness is required.

How does the GH330 grade influence tool life?
GH330, as a Tungaloy grade, provides a compromise between edge wear resistance and toughness, improving edge stability and extending usable tool life under typical turning conditions.

What should be checked to ensure holder compatibility?
Compatibility depends on form, clearance angle, tolerance class, fastening, size and plate thickness; verify these dimensions against the intended holder before assembly.

Can the insert be indexed to use both cutting edges?
Yes; the double‑sided chipbreaker design allows the insert to be indexed, effectively doubling available cutting edges and reducing tooling costs per edge.

Which dimensions are critical when fitting the insert?
Key dimensions to check are nose radius (0.8 mm), plate thickness (4.76 mm), plate size (12 mm), included angle (80°) and the presence of a cylindrical hole for secure clamping.

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.