CNMG 120412 AH6225 Wendeplatten - Tungaloy

Reliable PVD-coated carbide insert offering a precise balance of sharpness and edge stability for medium-duty turning of stainless steels. The ISO-compliant geometry and double-sided design support efficient indexing and consistent cycle times. Order the insert directly via Metav Werkzeuge or ask our consultants if clarification is required.

CNMG120412 AH6225 indexable insert for turning (Tungaloy) — PVD-coated carbide, 80° geometry

The CNMG120412 AH6225 is an ISO-standard, rhombic indexable insert designed for external and internal turning, delivering repeatable performance in medium machining of stainless steels.

• CNMG120412 geometry, 80° cutting angle
• PVD-coated carbide AH6225 for stainless steel
• Double-sided insert with cylindrical hole
• 1.2 mm corner radius for stable cutting edge

Consistent geometry and simple holder compatibility for stable production

The ISO-standard shape and clear dimensional definition ensure straightforward compatibility with standard external holders and boring bars, reducing setup time and rejects. The 80° geometry and rhombic shape provide a reliable balance between clearance and rigidity, while the 1.2 mm corner radius supports a durable cutting edge under varying cutting conditions. These characteristics translate into more predictable cycle times and fewer tool changes, which is particularly valuable for batch production where reproducibility is essential.

Increased tool life and process security from AH6225 PVD-coated grade

The PVD-coated AH6225 grade is a universal carbide formulation optimised for stainless steels, offering a sharp yet robust cutting edge for medium machining. The coating improves wear resistance and reduces built-up edge formation, which helps to preserve surface finish and dimensional accuracy over longer runs. Combined with the double-sided chipbreaker, this insert maintains consistent chip control and surface quality, thereby reducing rework and increasing overall process reliability.

Practical handling and usable design for internal and external turning

The insert’s double-sided design and the cylindrical hole allow quick indexing and secure clamping without special adaptations, supporting a low-cost, low-complexity tool system. With a plate thickness of 4.76 mm and an insert size of 12 mm, the component is suited to medium-duty operations where a balance of stiffness and access is required. Typical applications include both convex external passes and internal finishing cuts; choosing the chipbreaker and grade according to workpiece material and fixture stability yields the best results. If further machining data or cutting parameter recommendations are needed, the technical team at Metav Werkzeuge can provide tailored guidance.

Contact Metav Werkzeuge for personalised application advice and reliable supply of the CNMG120412 AH6225 insert — call +49 2822 7131930 or email info@metav-werkzeuge.com

Technical Data

• Article number: 6903180
• Manufacturer SKU: TUN6903180
• SKU: 6903180-Tungaloy
• Manufacturer: Tungaloy

Facts

• Corner radius: 1.2 mm
• Insert size: 12 mm
• Thickness: 4.76 mm
• Cutting angle: 80°
• Relief angle: 0°
• With hole: cylindrical

Special features

• Grade: AH6225 (PVD-coated carbide)
• Shape: rhombic
• Chipbreaker: double-sided
• Typical application: external and internal turning
• Model series: ISO turning indexable inserts

FAQ

What materials is this insert suitable for?
The CNMG120412 AH6225 indexable insert by Tungaloy is primarily designed for stainless steels, making it suitable for a wide range of austenitic and ferritic stainless materials in medium turning operations (SKU 6903180-Tungaloy).

How many cutting edges are available per insert?
The insert is double-sided with a rhombic geometry, providing multiple usable cutting edges before indexing is required; this supports efficient use of the component in production settings.

What chip control can be expected with this insert?
The double-sided chipbreaker integrated into the insert design delivers controlled chips for medium cutting depths, improving surface finish and reducing the chance of entanglement in bores or grooves.

Is the insert compatible with standard ISO holders?
Yes; the ISO-standard dimensions and the cylindrical hole ensure compatibility with common external holders and boring bars that accept CNMG-style inserts.

Which grade and coating does the insert use and why does it matter?
The AH6225 grade is a PVD-coated carbide chosen for its combination of a sharp edge and stable wear resistance on stainless steels; the coating enhances tool life and process reliability under varied cutting conditions.

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.