TNMG 160412 AH6225 Wendeplatten - Tungaloy

Take advantage of the combination of a PVD-coated AH6225 grade, a 1.2 mm corner radius, and ISO conformity for reliable turning performance; order the insert directly via Metav Werkzeuge or consult our specialists for application advice.

TNMG 160412 AH6225 Tungaloy turning insert for turning — PVD-coated carbide, 1.2 mm corner radius

A TNMG 160412 AH6225 is an ISO-form indexable turning insert intended for external and internal turning, optimised for stainless steels and medium machining conditions.

• PVD-coated grade AH6225 universal
• Sharp, stable cutting edge for medium cuts
• Triangle form with 1.2 mm corner radius
• Double-sided chipbreaker with cylindrical hole

Boosted process stability with a sharper, durable edge

The PVD-coated AH6225 grade combines a finely tuned coating with a wear-resistant carbide substrate to deliver a balance of sharpness and edge stability. For ISO-format indexable inserts this means more consistent cutting forces and fewer unexpected tool changes; the coated surface reduces adhesion and improves resistance to built-up edge when machining stainless steels. Choosing an insert with a 1.2 mm corner radius provides improved strength at the cutting edge while maintaining acceptable surface quality in medium-duty turning operations.

Consistent chip control and predictable machining results

The insert features a double-sided chipbreaker that is engineered to manage chip formation across varying feeds and depths of cut. A well-matched chipformer reduces vibration and improves chip evacuation, which in turn supports repeatable cycle times and a steadier surface finish. For operators unfamiliar with chipbreaker design: the geometry shapes the chip as it forms, preventing long, stringy chips and lowering the risk of re-cutting or tool crashes—benefits that translate into fewer stoppages and higher throughput.

ISO compatibility and straightforward toolholder matching

As an ISO-spec insert, compatibility with a toolholder depends on form, relief angle, tolerance class, fastening method, size and thickness; the TNMG geometry and a 0° relief angle make it suitable for a wide range of standard holders. The ISO designation simplifies procurement and tool inventory, since holders and clamping sets are manufactured to the same standards. When integrating the insert into a tool system, the passive fit and standard dimensions allow predictable clamping behaviour and repeatable positioning.

Practical benefits for workshop efficiency and repeatable quality

The triangular form offers multiple indexable edges, delivering economical use of each insert before replacement. The PVD coating of grade AH6225 supports medium machining of stainless steels under variable conditions, making the insert a versatile option for job shops and production environments where material mix and part run lengths vary. The geometry and coating together aim to reduce downtime and increase the intervals between inspection and replacement, supporting a more economical and controlled process.

Contact Metav Werkzeuge to discuss the TNMG 160412 AH6225 application and compatibility with existing holders or to request cutting parameter recommendations; email info@metav-werkzeuge.com or call +49 2822 7131930

Technical information

• Article number: 6947385
• SKU: 6947385-Tungaloy
• Manufacturer SKU: TUN6947385
• Model series: ISO turning inserts
• ISO designation: TNMG160412
• Grade: AH6225

Facts

• Corner radius: 1.2 mm
• Thickness: 4.76 mm
• Insert size: 16 mm
• Included angle: 60°
• Relief angle: 0°
• Hole style: cylindrical hole

Special features

• PVD-coated carbide grade AH6225
• Triangle insert form (indexable)
• Double-sided chipbreaker
• Suitable for external and internal turning
• Designed for stainless steels and medium machining conditions

FAQ

Which materials is this insert best suited to machine?
The TNMG 160412 AH6225 insert is formulated primarily for stainless steels, offering a balance between edge sharpness and wear resistance for medium turning operations.

What are the key geometry specifications of the insert?
The insert has a 1.2 mm corner radius, 16 mm size and a 60° included angle with a 0° relief angle; thickness is 4.76 mm and it features a cylindrical hole.

How does the AH6225 grade perform in shop conditions?
AH6225 is a PVD-coated carbide grade that provides a sharp, stable cutting edge suited to variable conditions and helps extend tool life in everyday production tasks.

Is the insert reversible and how many cutting edges are available?
The triangular form with a double-sided chipbreaker provides multiple indexable edges, allowing economical use through several indexing cycles.

What determines compatibility with a toolholder?
Compatibility is defined by insert form, relief angle, tolerance class, fastening method, size and thickness; the ISO designation TNMG160412 helps ensure match with standard holders.

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.