CNMG 120408 AH6225 Wendeplatten - Tungaloy

Take advantage of the combination of a sharp, stable cutting edge and reliable chip control for consistent turning performance; the PVD-coated AH6225 grade and 0.8 mm corner radius deliver repeatable results in variable conditions. Order originals via Metav Werkzeuge or request specialist advice for holder compatibility and application setup.

CNMG 120408 AH6225 indexable turning insert — Tungaloy

A CNMG120408 AH6225 indexable turning insert designed for external and internal turning, optimised for machining stainless steels under medium cutting conditions

• ISO CNMG 120408 shape, rhombic geometry
• PVD-coated AH6225 grade for stainless steel
• 0.8 mm corner radius for stable cutting
• Double-sided chipbreaker, cylindrical hole

Stable cutting edge for demanding stainless steels

The combination of a PVD-coated carbide substrate and the AH6225 grade provides a balance between sharpness and edge strength, making the insert suitable for machining stainless steels where work-hardening and variable conditions are common. The engineered coating increases wear resistance and helps maintain a consistent edge over repeated indices, which reduces tool-change frequency and supports uninterrupted production. This results in more predictable tool life and a steady surface finish on turned components.

Controlled chips and improved surface finish

The double-sided chipbreaker is designed to regulate chip formation during both external and internal turning operations, improving evacuation and reducing the risk of entanglement. Combined with the 0.8 mm corner radius, the insert promotes a stable cut and lower vibration, which benefits surface integrity and dimensional consistency. For medium-duty applications and intermittent cuts, these features help to cut cycle time and limit secondary operations, supporting a more efficient machining process.

Ready for ISO tool systems and reliable mounting

The insert follows the ISO CNMG120408 specification and integrates with standard holders when matching form, clearance angle, tolerance class, fastening method, size and thickness. With a 4.76 mm plate thickness and a 12 mm inscribed size in a rhombic format, mounting is straightforward in compatible external holders or boring bars; the cylindrical hole assists secure clamping and repeatable positioning. Clear identification and conformity to ISO norms simplify tool selection and inventory management.

Productivity focus and practical use recommendations

Designed as a universal grade for varied stainless-steel tasks, the insert performs best when paired with a holder and cutting parameters that match the workpiece stability and feed strategy. Select the chipbreaker variant and adjust speeds to reflect material grade and rigidity of the setup; this preserves the sharp edge while leveraging the coating’s wear resistance. For shops aiming to improve throughput without sacrificing quality, the insert supports consistent part tolerances and reduced downtime through fewer indexings.

For original Tungaloy AH6225 indexable inserts and tailored holder advice, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 — Metav Werkzeuge can confirm compatibility and supply the CNMG 120408 AH6225 insert.

Technical data

• Article number: 6825096-Tungaloy
• Manufacturer article number: 6825096
• Manufacturer SKU: TUN6825096
• Label: CNMG120408 AH6225 Tungaloy-Wendeplatte

Facts

• Corner radius: 0.8 mm
• Plate thickness: 4.76 mm
• Inscribed circle / size: 12 mm
• Clearance angle: 0°
• Main angle: 80°

Special features

• Material: carbide
• Coating / grade: PVD-coated, AH6225
• Chipbreaker: double-sided
• Plate form: rhombic
• Hole: with cylindrical hole
• Application: turning (external and internal)
• Series: ISO turning indexable inserts

FAQ

Is this insert suitable for stainless-steel turning?
Yes. The CNMG120408 AH6225 indexable insert is specified for machining stainless steels; the PVD-coated AH6225 grade balances edge sharpness and stability for medium cutting conditions.

How does the chipbreaker affect performance?
The double-sided chipbreaker on this Tungaloy insert improves chip control and evacuation, which helps maintain surface finish and reduces the likelihood of chip-related interruptions.

Which holders are compatible with this ISO insert?
Compatibility depends on form, clearance angle, tolerance class, fastening method, size and thickness; the CNMG 120408 format fits holders designed for ISO CNMG inserts when those parameters match.

Can the insert be used for internal turning (boring)?
Yes. The indexable insert is designed for both external and internal turning applications when used in appropriately sized boring bars or internal holders.

How many usable cutting edges are available on this insert?
The plate is double-sided and indexable; each side provides usable edges according to the CNMG geometry and the grade’s recommended use.

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.