CNMG 120412 AH6225 Wendeplatten - Tungaloy

Take advantage of the combination of a sharp, stable cutting edge and universal PVD grade for consistent performance in medium turning operations — order directly via Metav Werkzeuge or consult the team for application-specific advice.

CNMG 120412 AH6225 turning indexable insert by Tungaloy

CNMG120412 AH6225 is a rhombic, ISO‑standard turning indexable insert designed for robust external and internal turning in medium machining.

• PVD-coated carbide grade AH6225
• Universal for rostfreier Stahl turning
• Rhombic CNMG 80° geometry
• Double-sided with cylindrical hole

High-performance grade optimised for rostfreier Stahl

The cutting grade AH6225 is a PVD‑coated carbide engineered as a universal solution for machining rostfreier Stahl. Its specification targets a balance between a sharp cutting edge and edge stability under varying conditions, which reduces tool changes and increases productivity in batch and mixed-production environments. The coating improves wear resistance and adhesion of the cutting edge, contributing to longer effective tool life and more predictable process windows during medium turning operations.

Geometry and edge design for reliable chip control and surface quality

The rhombic geometry with an included angle of 80° and a corner radius 1.2 mm provides a compromise between cutting edge strength and dimensional control. The double-sided chipbreaker topology supports both external and internal turning and is suited to handle the typical chip behaviour of rostfreier Stahl, helping to avoid built-up edge and improving surface finish. This geometry also simplifies inventory by allowing indexed re‑use of the cutting edges, maintaining consistent results across repetitive production runs.

Practical compatibility and handling in the workshop

Compatibility with toolholders is determined by form, clearance angle, tolerance class, fixing method, size and thickness; this insert uses a cylindrical hole for secure clamping and a plate thickness 4.76 mm for mechanical stability. The insert conforms to ISO dimensions for straightforward replacement and integration into existing toolholder systems. For process planning, select a matching holder and clamping set that respects the insert’s geometry and tolerance class to fully leverage the grade’s stability and wear properties.

For selection advice tailored to specific rostfreier Stahl alloys or for help matching holders and clamping sets for the Tungaloy CNMG120412 AH6225 insert, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 for a precise recommendation

Technical data

• Article number: 6796303
• Manufacturer article number: 6796303
• SKU: 6796303-Tungaloy
• Manufacturer SKU: TUN6796303
• Model series: ISO-Drehwendeschneidplatten
• Material: Carbide

Facts

• Corner radius: 1.2 mm
• Clearance angle: 0°
• Included angle: 80°
• Plate thickness: 4.76 mm
• Size: 12 mm

Special features

• Grade/coating: AH6225 (PVD-coated carbide)
• Geometry: rhombic CNMG (ISO designation CNMG120412)
• Chipbreaker: double-sided
• Hole: cylindrical hole (with hole)
• Application: Turning, external and internal
• Designed for rostfreier Stahl

FAQ

What materials is this insert suitable for?
The CNMG120412 AH6225 insert from Tungaloy is formulated as a universal grade for machining rostfreier Stahl and covers a broad range of stainless applications.

What coating and substrate does the insert use?
The insert features a PVD‑coated carbide substrate; the AH6225 grade combines a wear‑resistant coating with a stable carbide core for medium turning.

Is the insert double-sided or single-sided?
This ISO rhombic insert is double‑sided with a cylindrical hole, allowing indexing of both faces to extend tool life and reduce operating costs.

Which geometry and corner radius are specified?
The insert has an 80° included angle with a corner radius of 1.2 mm, offering a balance between edge strength and achievable surface finish.

How is holder compatibility ensured?
Compatibility depends on holder form, clearance angle, tolerance class, fixing method, size and thickness; match these parameters to the CNMG120412 AH6225 insert and use an appropriate clamping set and replacement screws.

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.