CNMG 090408 AH6225 Wendeplatten - Tungaloy

Benefit from the combination of a PVD-coated cemented‑carbide grade, a precise 0.8 mm nose radius and an 80° rhombic geometry for stable, repeatable turning performance; order the insert directly via Metav Werkzeuge or contact our consultants for application advice.

CNMG090408 AH6225 indexable turning insert — rhombic 80° geometry, PVD-coated — Tungaloy

A CNMG090408 AH6225 indexable insert engineered for external and internal turning operations, offering a sharp yet resilient cutting edge for medium‑duty machining of stainless steels.

• CNMG090408 ISO indexable insert
• PVD‑coated cemented carbide AH6225
• Universal grade for stainless steels
• 80° rhombic geometry, 0° clearance

Consistent cutting performance under variable conditions

The AH6225 grade combines a PVD coating with a wear‑resistant cemented‑carbide substrate to deliver a finely balanced cutting edge that remains stable during intermittent cuts. This composition is optimised for machining stainless steels, where a sharp edge and good adhesion resistance reduce work hardening and edge chipping. The result is more consistent surface finish and longer tool life during medium‑range feeds and speeds, which supports predictable cycle times and reduced rework.

Accurate seating and predictable geometry for secure clamping

The rhombic 80° geometry and 0° clearance angle ensure reliable contact with standard ISO holders while the 0.8 mm nose radius supports defined corner strength and surface integrity. The insert thickness of 4.76 mm and its cylindrical hole are designed for secure fixing with compatible clamps and screws; compatibility is governed by form, clearance, tolerance class, fastening method, size and thickness. These geometric details make the insert straightforward to integrate into existing tool systems and minimise setup variation.

Improved chip control and versatile turning capability

Equipped with a double‑sided chipbreaker, the insert provides balanced chip formation for both interrupted and continuous cuts, helping to avoid built‑up edge and easing chip evacuation. This chip control, combined with the universal AH6225 grade, supports external and internal turning applications across a broad range of stainless steels and variable cutting conditions. Selecting the appropriate chipbreaker and feed strategy will further enhance productivity and surface quality with reduced machining risks.

Practical handling, inventory efficiency and system considerations

As a reversible, indexable component, this ISO insert reduces inventory by allowing multiple edges to be used before replacement. The system‑based approach requires the matching of insert, holder, shim/clamp set and fastening parts — when these components are chosen to the same ISO specifications, setup time decreases and repeatability increases. The package concept typically includes the insert, an appropriate external holder or boring bar, a shim/clamp kit and spare screws to maintain uninterrupted production.

Contact Metav Werkzeuge today for tailored recommendations on Tungaloy CNMG090408 AH6225 inserts and system matching; email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6946682

• SKU: 6946682-Tungaloy

• Manufacturer SKU: TUN6946682

Facts

• Nose radius: 0.8 mm

• Thickness: 4.76 mm

• Size designation: 09

• ISO code: 090408

• Included angle: 80°

• Clearance angle: 0°

Special features

• Material: cemented carbide

• Coating: PVD

• Grade: AH6225

• Plate shape: rhombic

• Hole: cylindrical hole

• Chipbreaker: double‑sided

• Application: turning (external and internal)

FAQ

What materials is this insert suitable for? This insert is specified for machining stainless steels; the AH6225 PVD‑coated cemented‑carbide grade is formulated for good edge stability and broad stainless‑steel coverage.

How does the 0.8 mm nose radius influence the finish? A 0.8 mm nose radius balances edge strength and surface quality; the CNMG090408 AH6225 insert offers consistent finishes while maintaining corner robustness for medium cutting conditions.

Is the insert reversible and how many cutting edges are available? The CNMG090408 insert is double‑sided with a double‑sided chipbreaker, allowing indexation to fresh edges and reducing stock requirements compared with single‑edged solutions.

Which holders are compatible with this ISO insert? Compatibility depends on ISO holder form, clamp style, tolerance class, fastening and the insert size/thickness; the insert integrates with standard ISO turning holders specified for CNMG 09‑series plates.

What are the main benefits of the AH6225 grade? AH6225 delivers a sharp yet stable cutting edge under variable conditions; its PVD coating enhances wear resistance and adhesion control, improving tool life on stainless steels.

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.