CNMG 090408 AH6225 Wendeplatten - Tungaloy

The combination of a PVD‑coated AH6225 grade and the precision CNMG 090408 rhombic geometry delivers consistent cutting quality and extended tool life for medium turning operations on stainless steel; order the inserts directly via Metav Werkzeuge or consult the technical advisers for application matching.

CNMG 090408 AH6225 Tungaloy insert — ISO rhombic CNMG for turning

CNMG090408 AH6225 Tungaloy insert is an ISO‑standard, rhombic, double‑sided indexable insert designed for turning operations, optimised for stainless steel machining.

• CNMG 090408 rhombic, 80° cutting angle
• AH6225 PVD‑coated carbide grade
• Universal for stainless steel machining
• Double‑sided insert with cylindrical hole

Consistent edge stability for medium turning operations

The AH6225 grade is a PVD‑coated carbide engineered to provide a balance between sharpness and robustness, making it suitable for medium machining and variable conditions. The coating improves wear resistance and reduces built‑up edge tendencies on stainless steel, while the substrate supports a stable cutting edge under intermittent cuts. In practice, this means fewer insert changes and more predictable component tolerances — an advantage for batch production where consistent surface finish and dimensional repeatability are required. Thermal and mechanical stresses are mitigated by the coating and grade combination, which supports longer effective tool life and steady process output.

ISO compatibility reduces setup complexity and downtime

The rhombic CNMG form with an 80° included angle and a 0.8 mm nose radius is an ISO‑compliant format that fits a wide range of external holders and boring bars when holder form, clearance angle, tolerance class, clamping method, size and thickness are matched. The insert is double‑sided and supplied with a cylindrical hole, enabling secure clamping and simple indexation to the next cutting edge. This standardisation helps to reduce inventory complexity and shortens changeover times on the shop floor. Compatibility with common ISO toolposts and clamping systems means integration into existing tool sets is straightforward, supporting smoother production flows.

Practical productivity: chip control and application flexibility

Equipped with a double‑sided chipbreaker, the insert supports controlled chip formation across a range of feeds and depths of cut typically used for external and internal turning. The 0.8 mm corner radius offers a compromise between finish and strength, permitting moderate feed rates while protecting the nose from thermal and mechanical overload. For varied workpiece conditions, selecting the correct chipbreaker and the AH6225 grade helps maintain surface quality and reduces rework. The insert is best used where process reliability and repeatable results are priorities; its design favours shops that require a universal solution for batch runs and mixed stainless steel components.

Contact Metav Werkzeuge for availability of the Tungaloy CNMG 090408 AH6225 inserts and application advice — email info@metav-werkzeuge.com or call +49 2822 7131930 for tailored recommendations and order processing

Technical Data

• Article number: 6946714
• Manufacturer SKU: TUN6946714
• Model series: ISO‑Drehwendeschneidplatten
• Material: Hartmetall
• Coating / Grade: AH6225 (PVD‑coated)
• Shape: rhombic (CNMG)
• Size designation: 09
• ISO code: 090408
• Thickness: 4.76 mm
• Nose radius: 0.8 mm
• Relief angle: 0°
• Hole: with hole, cylindrical hole
• Cutting angle: 80°

Facts

• 80° rhombic geometry
• 0.8 mm corner radius
• Thickness 4.76 mm
• Double‑sided insert
• PVD‑coated carbide grade

Special features

• Universal grade for stainless steel machining
• Suitable for external and internal turning
• Double‑sided chipbreaker
• ISO‑standard format for broad holder compatibility
• Stable cutting edge for medium machining

FAQ

What materials is this insert suitable for?
The CNMG090408 AH6225 Tungaloy insert is intended primarily for machining stainless steel and is formulated to perform reliably under medium turning conditions.

Does the CNMG090408 insert fit standard ISO holders?
Yes. The insert follows ISO dimensions for CNMG 090408 geometry and is compatible with holders that match the form, clearance angle, tolerance class, size and thickness.

What are the main benefits of the AH6225 grade?
AH6225 is a PVD‑coated carbide grade designed to combine a relatively sharp cutting edge with good wear resistance, improving process stability and surface quality when using the CNMG090408 insert.

Is the insert reversible and how many cutting edges are available?
The CNMG090408 insert is double‑sided; it can be indexed to use multiple cutting edges, extending time between insert replacements.

What chip control can be expected with this insert?
With its double‑sided chipbreaker, the insert provides controlled chip formation across a range of feeds and is suitable for external and internal turning operations.

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.