DNMG 150408 AH6225 Wendeplatten - Tungaloy

Benefit from a PVD-coated carbide grade that balances a sharp, stable cutting edge with broad material coverage; the insert's rhombic 55° geometry and 0.8 mm corner radius deliver consistent results in medium turning operations on rostfreier Stahl. Order directly via Metav Werkzeuge or consult our specialists for holder compatibility and process setup.

DNMG150408 AH6225 Tungaloy indexable insert for turning — PVD-coated carbide, 0.8 mm radius

The DNMG150408 AH6225 Tungaloy indexable insert is an ISO-standard rhombic turning insert designed for external and internal turning, optimised for medium machining of rostfreier Stahl.

• PVD-coated carbide grade AH6225
• Optimised for rostfreier Stahl machining
• Rhombic 55° geometry for versatile use
• Double-sided chipbreaker, with cylindrical hole

Predictable performance from a universal PVD-coated grade

The insert is manufactured in a PVD-coated carbide substrate and assigned the AH6225 grade, developed for reliable machining of rostfreier Stahl under varying conditions. The PVD coating forms a thin, hard surface layer that improves wear resistance and thermal stability during continuous and intermittent cuts. As a consequence, tool life is extended and machining remains predictable even when workpiece conditions change. This rational advantage supports stable cycle times and reduced downtime for medium cutting depths.

Geometry and clamping that support consistent surface finish

The rhombic geometry with a 55° included angle and a 0.8 mm corner radius offers a balance between edge strength and fine surface finish. A 0° relief angle reduces rubbing on the tool flank in many holder setups, while the double-sided chipbreaker helps control chip form across a range of feeds. The insert is supplied with a cylindrical hole to ensure secure clamping; compatibility with holders depends on form, relief, tolerance class, fixing, size and thickness. These design elements make the component suitable for repeatable, high-quality turning operations on rostfreier Stahl.

Process benefits and selection guidance for practical use

Selection of the correct chipbreaker and the AH6225 grade should be driven by workpiece stability and the intended cutting parameters: a stable setup permits more aggressive feeds and leverages the insert’s wear resistance, whereas unstable setups benefit from the rounded edge for increased robustness. The 4.76 mm thickness and 15 mm designation relate to mechanical stiffness and seating in the holder; maintaining a stock of indexed inserts enables rapid replacement and consistent part quality. For users with limited exposure to indexable tooling: the indexable concept separates the cutting edge from the holder, simplifying maintenance and reducing total tooling cost over many parts.

For application-specific recommendations on the Tungaloy DNMG150408 AH6225 insert, or to confirm suitable holders and clamping sets, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 to arrange a technical consultation

Technical data

• Article number: 6903190
• Manufacturer article number: 6903190
• Manufacturer SKU: TUN6903190
• SKU: 6903190-Tungaloy
• Model series: ISO turning indexable inserts
• Material: carbide
• Grade/coating: AH6225, PVD-coated

Facts

• Size designation: 15 mm
• Plate thickness: 4.76 mm
• Corner radius: 0.8 mm
• Included angle: 55°
• Relief angle: 0°

Special features

• Rhombic plate form
• Double-sided chipbreaker
• With cylindrical hole for secure fixing
• ISO-standard indexable insert for turning
• Optimised for rostfreier Stahl machining

FAQ

What applications suit this insert best?
The DNMG150408 AH6225 Tungaloy insert is intended for external and internal turning, particularly medium cutting of rostfreier Stahl where a sharp yet stable cutting edge is required.

How does the AH6225 grade affect tool life?
The AH6225 grade combines a PVD-coated surface with a carbide substrate to increase wear resistance and thermal stability; in typical medium-turning operations this results in more consistent tool life for the insert.

Is the insert compatible with all ISO holders?
Compatibility depends on holder geometry and tolerance class; the insert’s form, relief, fixation and thickness determine fit, so matching an ISO holder with the DNMG150408 geometry is recommended.

What chip control can be expected from the plate?
The double-sided chipbreaker is designed to produce manageable chips across a range of feeds, improving process stability and reducing the risk of chip-related interruptions.

How should the corner radius influence cutting parameters?
A 0.8 mm corner radius favours a compromise between surface finish and edge strength; it is suitable for medium feeds where a robust edge and good finish are both required.

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.