CNMG 120408 AH6225 Wendeplatten - Tungaloy

Benefit from the combination of a PVD-coated carbide grade for reliable performance, a rhombic 80° geometry for stable cutting and an integrated double-sided chipbreaker for controlled chip flow; order the insert directly via Metav Werkzeuge or consult the specialists if further advice is required.

CNMG120408 AH6225 Tungaloy indexable insert for turning — PVD-coated, 80° rhombic

The CNMG120408 AH6225 is an ISO rhombic indexable insert developed for medium turning operations on stainless steels, offering a sharp yet robust cutting edge for varied machining conditions

• PVD-coated universal grade AH6225
• For stainless-steel turning
• Rhombic 80° geometry with 0.8 mm radius
• Double-sided chipbreaker, reversible insert

Consistent cutting for stainless-steel turning

The insert is a PVD-coated carbide design in the AH6225 grade, optimised to balance a sharp, stable cutting edge with wear resistance for demanding applications on stainless steels. The rhombic form with an 80° lead angle provides a compromise between edge strength and accessibility for profiling and general turning tasks; this geometry reduces vibration and supports consistent dimensional results. The built-in chipbreaker promotes predictable chip formation, which simplifies evacuation in automatic and manual setups and lowers the risk of chip re-cutting during interrupted cuts.

Extend tool life and ensure process stability

A PVD-coated surface enhances abrasive wear resistance and contributes to longer tool life, particularly under fluctuating conditions typical of stainless-steel machining. The coating stabilises the cutting edge, improving process stability and reducing the need for frequent indexings. The modest 0.8 mm radius helps maintain edge robustness while still allowing acceptable surface finish on medium feeds. Together these attributes reduce downtime and support higher productivity through fewer tool changes and more consistent part quality.

Easy integration into ISO tooling systems

Designed as an ISO-conforming indexable insert, the component fits standard holders when shape, clearance, tolerance class, clamping and thickness are matched. The ISO standard compatibility and the rhombic plate form make replacement and stocking straightforward across common toolholders. The 4.76 mm thickness and the cylindrical hole ensure secure clamping and repeatable seating, minimising setup time and promoting reproducible cutting conditions in batch production. This configuration supports efficient tool management and predictable machining results across diverse turning tasks.

For availability and application advice on Tungaloy PVD-coated inserts, contact Metav Werkzeuge at info@metav-werkzeuge.com or +49 2822 7131930 for personalised support

Technical Data

• Article number: 6796302
• Manufacturer SKU: TUN6796302
• Model series: ISO-Drehwendeschneidplatten
• Product name: CNMG120408 AH6225 Tungaloy indexable insert
• Material: Carbide
• Grade/coating: AH6225

Core data

• Angle: 80°
• Radius: 0.8 mm
• Thickness: 4.76 mm
• Size: 12
• Relief angle: 0°
• Hole: with cylindrical hole

Special features

• PVD-coated carbide (AH6225)
• Rhombic plate form
• Double-sided chipbreaker, reversible insert
• ISO-conforming turning insert
• Suitable for stainless steels
• Cylindrical hole for secure clamping

FAQ

What materials is this insert intended for? The CNMG120408 AH6225 insert from Tungaloy is primarily intended for machining stainless steels, with the AH6225 grade offering a good balance of edge life and versatility.

What does the AH6225 designation indicate? AH6225 denotes a PVD-coated carbide grade engineered for universal use on rostfreie Stähle, optimised for a stable cutting edge and medium machining conditions.

How does the rhombic 80° geometry affect cutting performance? An 80° rhombic geometry increases edge strength while maintaining access for external and internal turning; it supports reduced vibration and improved surface quality in general-purpose turning.

Is the insert reversible or indexable? Yes, the insert features a double-sided chipbreaker, making it reversible and enabling multiple indexings to extend usable life before replacement.

How is compatibility with toolholders ensured? Compatibility is governed by ISO form, clearance (relief) angle, tolerance class, clamping method, size and thickness; the CNMG120408 conforms to ISO standards and uses a cylindrical hole for standard clamping systems.

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.