CNMG 120408 AH6225 Wendeplatten - Tungaloy

Take advantage of a sharp yet stable cutting edge and wide material compatibility to maintain productive turning operations; the PVD-coated AH6225 grade ensures consistent chip control and reliable tool life. Order directly via Metav Werkzeuge or consult the team for application-specific advice.

CNMG120408 AH6225 Turning Insert for Turning — Tungaloy

The CNMG120408 AH6225 turning insert is an ISO‑standard indexable insert designed for external and internal turning, offering a sharp, stable edge for machining stainless steels and mixed production conditions.

• ISO rhombic insert CNMG120408 form
• PVD-coated AH6225 for stainless steels
• Double-sided chipbreaker for consistent chips
• 0.8 mm corner radius and 80° included angle

Higher throughput with a balanced cutting edge

The CNMG120408 AH6225 insert combines a PVD-coated AH6225 grade with cemented carbide substrate to deliver a balance of sharpness and edge stability that supports medium cutting conditions. The result is a more consistent material removal rate and reduced flank wear compared with uncoated grades. The PVD layer improves resistance to built-up edge formation during stainless‑steel turning, while the substrate geometry aids in maintaining a repeatable cutting profile across multiple indexings. This technical combination supports predictable cycle times and helps to keep production flow steady.

Seamless integration into ISO turning systems

Compatibility is defined by form, relief angle, tolerance class, fastening, size and thickness; the rhombic ISO form and a cylindrical mounting hole ensure straightforward fitting into standard CNMG holders. The insert’s 4.76 mm thickness and 12 mm size match common holder families, reducing the need for bespoke tooling. Specifying the correct relief and tolerance class preserves clamping stability, which in turn supports dimensional accuracy and repeatable surface quality on turned components.

Stable chip control and surface finish benefits

A double-sided chipbreaker designed for this insert helps to fragment chips reliably under varying feeds and depths of cut, lowering the risk of entanglement and improving process safety. The 0.8 mm corner radius and 80° included angle provide a compromise between edge strength and geometrical versatility, making the insert suitable for profile turning and general machining tasks where both durability and finish matter. Operators benefit from fewer interruptions and more consistent part surfaces, particularly when machining stainless steels prone to built‑up edge.

Practical selection and process reliability

Choosing the AH6225 grade means opting for a universal solution tailored to stainless steel applications and changing work conditions; it is designed for good edge integrity and reliable tool life in mixed‑batch production. The insert’s double‑sided design extends usage per index, and the PVD coating contributes to wear resistance. For best results, match feed and speed to the material and stabilise the setup to exploit the grade’s strengths; the insert is intended for turning operations where predictable, productive machining is required.

For reliable stainless‑steel turning with Tungaloy’s AH6225 grade, contact Metav Werkzeuge for application guidance and availability at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6946862
• Manufacturer SKU: TUN6946862
• SKU: 6946862-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Manufacturer: Tungaloy

Facts

• Corner radius: 0.8 mm
• Included angle: 80°
• Relief angle: 0°
• Plate thickness: 4.76 mm
• Plate size: 12 mm

Special features

• Grade: AH6225 (PVD-coated)
• Material: cemented carbide
• Chipbreaker: double-sided
• Plate shape: rhombic
• Mounting hole: cylindrical hole
• Typical application: external and internal turning
• Compatibility: ISO holders by form, relief, tolerance, fastening, size, thickness

FAQ

What materials is this insert suitable for?
The AH6225 grade is formulated for machining stainless steels and performs well across a broad range of corrosion‑resistant alloys when used with appropriate cutting parameters.

Can the CNMG120408 AH6225 be used for internal turning?
Yes, the rhombic form and 80° included angle make the insert suitable for both external and internal turning applications when mounted in a compatible holder.

How does the PVD coating affect tool life?
The PVD-coated surface on the AH6225 grade enhances wear resistance and reduces built‑up edge formation, supporting more consistent tool life under medium‑duty turning conditions.

Is the insert suitable for light finishing passes?
With its 0.8 mm corner radius and sharp but stable edge, the insert provides a good compromise for finishing and general profiling where surface quality and edge strength are required.

What is the exact product reference for ordering?
The product is available as CNMG120408 AH6225, manufacturer article number 6946862 and SKU 6946862‑Tungaloy.

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.