CNMG 120412 AH120 Wendeplatten - Tungaloy

Take advantage of the combination of a PVD-coated carbide grade and a double-sided chipbreaker for consistent, high-productivity turning; order the CNMG 120412 AH120 indexable insert directly via Metav Werkzeuge or ask our consultants if needed.

CNMG 120412 AH120 indexable insert for turning — Tungaloy, PVD-coated carbide, double-sided chipbreaker

The CNMG120412 AH120 indexable insert is designed for external and internal turning, offering a wear- and fracture-resistant PVD-coated carbide grade for stable, reproducible machining in a wide range of turning applications.

• PVD-coated carbide for wear resistance
• Double-sided chipbreaker for versatile turning
• ISO CNMG120412 format, 80° rhombic geometry
• Cylindrical hole and 1.2 mm corner radius

Predictable cutting performance for efficient turning

The insert’s PVD-coated carbide grade delivers consistent cutting-edge stability, which reduces variability in production and supports predictable cycle times. The AH120 grade is designed to resist wear and chipping, so the cutting edge remains sharp longer; this translates into fewer tool changes and improved machine utilisation. For operations that demand steady metal removal rates, the combination of coating and carbide substrate offers a reliable basis for process planning and cost-efficiency.

Robust grade and chip control that protect the workpiece

Equipped with a double-sided chipbreaker, the insert controls chip formation for safer evacuation and reduced risk of workpiece damage. The chipbreaker geometry is optimised to produce manageable chip shapes at typical turning feeds, improving surface finish and minimising secondary operations. The 1.2 mm corner radius balances edge strength and finishing capability, allowing for robust cuts while still achieving a controlled surface quality on most steels and alloyed materials.

System compatibility and simple integration into ISO setups

The rhombic ISO CNMG120412 format and the cylindrical hole ensure straightforward mechanical location in standard CNMG toolholders; compatibility depends on holder form, clearance angle, tolerance class, fixation method, size and thickness. The 4.76 mm plate thickness contributes to rigidity at the cutting edge, supporting stable machining in both external and internal turning. Integrating this insert into a well-matched holder and clamping kit reduces vibration and improves repeatability across serial production.

Practical benefits for workshop productivity

Selecting the right grade and chipbreaker for the material and machining conditions reduces downtime and improves yield. The insert’s wear resistance supports longer tool life and more consistent part quality, while the ISO format simplifies inventory management across a fleet of machines. For production-minded shops, the reduced frequency of indexings and replacements helps sustain throughput and lowers the total cost of ownership for turning operations.

For consistent, high-productivity turning with Tungaloy inserts, contact Metav Werkzeuge to source the CNMG 120412 AH120 and receive application-specific recommendations — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6802195
• Manufacturer SKU: TUN6802195
• SKU: 6802195-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Material: Hartmetall

Facts

• Corner radius: 1.2 mm
• Approach angle: 80°
• Plate thickness: 4.76 mm
• Plate size: 12 mm
• Clearance angle: 0°

Special features

• PVD-coated carbide grade AH120
• Double-sided chipbreaker
• Rhombic plate form (CNMG)
• Cylindrical locating hole
• Suitable for external and internal turning
• ISO CNMG120412 compliant

FAQ

What materials is this insert suitable for?
The CNMG 120412 AH120 insert with its PVD-coated carbide grade is intended for a broad range of turning tasks and performs well on steels and many alloyed materials where wear resistance and edge security are required.

How does the AH120 grade affect tool life?
The AH120 PVD-coated grade improves wear resistance and reduces the risk of edge chipping, which typically extends the effective tool life of the insert in continuous turning operations.

Is the insert compatible with standard CNMG toolholders?
Yes, the CNMG120412 format and cylindrical hole allow mechanical location in standard CNMG holders; compatibility must be confirmed by matching holder form, clearance angle, tolerance class, fixation and plate thickness.

Can this insert be used for finishing cuts?
With a 1.2 mm corner radius and a controlled chipbreaker, the insert can be employed for light to medium finishing operations while still providing sufficient edge strength for semi-finishing passes.

How many cutting edges are available per insert?
This is a double-sided indexable insert; each side provides cutting edges according to the CNMG geometry, enabling economical use of the rotating edges before replacement.

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.