CNMG 120404 GH330 Wendeplatten - Tungaloy

Take advantage of the combination of precise geometry, a wear-resistant cutting grade and straightforward holder compatibility to maintain steady machining output. Benefit from the GH330 Tungaloy grade and the 0.4 mm nose radius for consistent surface finish and extended tool life; order directly via Metav Werkzeuge or request advice from the technical team.

CNMG120404 GH330 Tungaloy turning insert — ISO rhombic insert for turning, 0.4 mm nose radius

CNMG120404 GH330 Tungaloy turning insert is an ISO-standard rhombic carbide insert designed for external and internal turning, combining a compact 0.4 mm nose radius with a balanced grade for stable cutting edge performance.

• ISO rhombic CNMG form, 80° included angle
• 0.4 mm nose radius for precise turning
• GH330 Tungaloy grade for wear resistance
• Double-sided chipbreaker; cylindrical hole

Achieve repeatable accuracy with a fine nose radius and stable geometry

The rhombic ISO form with an 80° included angle and a 0.4 mm nose radius delivers controlled cutting engagement for fine turning tasks. This geometry reduces radial runout effects and helps to produce consistent diameters and improved surface finishes during finishing passes. The 0° relief angle in the insert geometry supports defined cutting conditions where dimensional accuracy and repeatability are priorities, making the component suitable for precision external and internal turning operations.

Durable grade and balanced edge properties for uninterrupted production

The GH330 Tungaloy grade has been selected to provide a balance of wear resistance and toughness, limiting flank wear while maintaining edge integrity under typical turning conditions. As an indexable carbide solution, this grade supports longer tool life and fewer indexings, which contributes to reduced tool-change downtime and lower overall tooling costs. The presence of a purpose-designed chipbreaker further helps to control swarf formation and evacuation, enhancing process stability on continuous production runs.

Simple integration into existing ISO tool systems

Compatibility is determined by form, relief angle, tolerance class, fastening method, size and thickness; the insert fits standard CNMG pockets when the matching holder is used. The system typically comprises an ISO insert, a suitable external holder or boring bar, a locating pad or clamp kit and replacement fastening screws. The insert’s cylindrical hole and double-sided design allow reliable clamping and economical two-index usage, simplifying inventory management and reducing per-edge cost.

Productivity gains through predictable performance and reduced rework

Using a purpose-matched insert and chipbreaker means cut control and surface quality are improved, decreasing the likelihood of rework. The carbide construction ensures mechanical stability at the cutting edge, while the GH330 composition supports consistent edge life across a broad range of turning tasks. Together, these attributes support higher machine utilisation, more predictable tool-change intervals and a better cost-per-part ratio for both small-batch and serial manufacturing.

For bespoke application guidance and supply from Metav Werkzeuge, please contact info@metav-werkzeuge.com or call +49 2822 7131930 to discuss the CNMG120404 and the ideal holder combination for the intended turning task.

Technical data

• Article number: 6802012
• Manufacturer SKU: TUN6802012
• SKU: 6802012-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Material: Hartmetall

Core technical data

• Insert designation: CNMG120404
• Nose radius: 0.4 mm
• Included angle: 80°
• Relief angle: 0°
• Plate thickness: 4.76 mm
• Plate size: 12 mm

Special features

• Grade: GH330 (Tungaloy)
• Double-sided chipbreaker
• Cylindrical hole for positive clamping
• Rhombic ISO insert form (CNMG)
• Suitable for external and internal turning
• ISO-standard indexable insert

FAQ

What machining tasks is this insert designed for?
The CNMG120404 GH330 Tungaloy turning insert is intended for external and internal turning operations where a fine nose radius and stable edge life are required.

How does the GH330 grade affect tool life?
The GH330 grade used in this insert provides a balance of wear resistance and toughness, which helps maintain cutting-edge stability and extends the usable life of the indexable insert.

Can this insert be used in any CNMG holder?
Compatibility depends on matching the insert form, relief angle, tolerance class, fastening method, size and thickness; the CNMG120404 fits holders designed for CNMG inserts with the corresponding specifications.

Is the insert single-sided or double-sided?
This indexable insert is double-sided with a cylindrical hole, allowing for economical indexing and secure clamping during turning operations.

Is the CNMG120404 suitable for finishing passes?
Yes — the 0.4 mm nose radius and the insert geometry support precision finishing, delivering good surface quality when combined with appropriate 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.