CNMG 120404 AH6225 Wendeplatten - Tungaloy

Take advantage of the combination of a PVD-coated carbide grade tuned for stainless steel, robust insert geometry and ISO compatibility for reliable turning performance; order the insert directly via Metav Werkzeuge or consult the technical team for grade and chipbreaker selection.

CNMG 120404 AH6225 Tungaloy indexable turning insert — PVD-coated carbide, 80° rhombic form

CNMG120404 AH6225 is a PVD-coated carbide indexable insert designed for external and internal turning in general workshop and production environments.

• PVD-coated carbide for reliable edge performance
• Universal grade AH6225 for stainless steel machining
• 80° rhombic form with 0.4 mm corner radius
• Double-sided chipbreaker with cylindrical hole

Consistent performance for stainless steel turning

The insert’s AH6225 grade combines a PVD-coated surface with a carbide substrate to deliver a sharp yet stable cutting edge for medium turning operations. This composition supports consistent cutting forces and predictable wear behaviour when machining stainless steel, improving process stability across mixed batch sizes. The result is reduced downtime and repeatable surface quality, which benefits both single-piece production and serial machining.

Geometry and clamping that reduce setup risk

Designed with an 80° rhombic plate form and a 0.4 mm corner radius, the insert offers a robust geometry that balances edge strength and accessibility for common turning profiles. The cylindrical hole and standard ISO dimensions ensure compatibility with a wide range of indexable holders; compatibility depends on matching form, relief angle, tolerance class, fastening method, size and thickness. These features support secure clamping, fast indexing and minimal runout, which in turn lowers scrap rates and enhances operator confidence.

Chip control and process adaptability for reliable production

Equipped with a double-sided chipbreaker, the insert provides stable chip formation over a range of feeds and cutting conditions. The universal nature of the grade makes it suitable where material batches vary or where frequent tool changes are impractical. Selection of the appropriate chipbreaker and stable machine setup are the main levers for optimising cycle time and surface finish; the insert’s design helps maintain consistent chip evacuation and reduces the need for corrective interventions.

Durability and economic advantages in daily turning

The combination of carbide substrate and PVD coating extends tool life under varying thermal and mechanical loads while maintaining edge integrity. This yields economic advantages through fewer indexings and longer intervals between insert changes. For operations prioritising process security and surface quality on stainless steel, the insert supports higher productivity and repeatable results, making it a practical choice for both production shops and jobbing environments.

Contact Metav Werkzeuge for machining recommendations, grade matching and supply of the CNMG 120404 AH6225 insert — email info@metav-werkzeuge.com or call +49 2822 7131930 to discuss optimal chipbreaker and holder pairing

Technical Data

• Article number: 6946756-Tungaloy
• Manufacturer article number: 6946756
• Manufacturer SKU: TUN6946756
• Material: Hartmetall
• Grade/coating: AH6225 (PVD-coated)
• Model series: ISO indexable turning inserts

Data

• Plate size: 12 mm
• Plate thickness: 4.76 mm
• Corner radius: 0.4 mm
• Relief angle: 0°
• Insert angle: 80°

Special features

• Rhombic plate form
• Double-sided chipbreaker
• Cylindrical hole for clamping
• ISO-standard design for turning
• Intended use: Drehen (external and internal)

FAQ

Which materials is this insert suited for?
The AH6225 grade is formulated as a universal choice for stainless steel and offers reliable performance in medium turning applications where edge stability and wear resistance are required.

How is compatibility with holders determined?
Compatibility depends on matching the insert’s form, relief angle, tolerance class, fastening style, size and thickness; the CNMG120404 format follows ISO indexing, so suitable ISO CNMG holders and appropriate clamping kits ensure secure mounting.

What benefit does the PVD coating provide?
The PVD-coated surface on the AH6225 grade enhances wear resistance and edge stability, extending useful cutting life and improving process security under fluctuating machining conditions.

Is the chipbreaker suitable for a range of feeds?
The double-sided chipbreaker is designed to deliver controlled chip formation across varied feeds and cutting depths, helping to maintain surface finish and reduce the risk of built-up edge during turning.

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.