DNMG 150408 AH6225 Wendeplatten - Tungaloy

Take advantage of the combination of a PVD‑coated AH6225 carbide grade, a rhombic 55° geometry and a 0.8 mm corner radius to achieve consistent surface quality and reliable tool life in stainless steel turning; order the insert directly via Metav Werkzeuge or request application advice from our consultants.

DNMG 150408 AH6225 ISO turning insert (rhombic 55°, PVD‑coated carbide) – Tungaloy

DNMG 150408 AH6225 is an ISO‑standard indexable turning insert designed for external and internal turning operations, optimised for stainless steels and mid‑range machining conditions.

• PVD‑coated carbide for stainless steels
• Rhombic insert, 55° cutting geometry
• Double‑sided chipbreaker for versatile use
• Cylindrical hole and 4.76 mm thickness

Consistent edge performance for stainless steel turning

The AH6225 grade is a PVD‑coated carbide designed specifically to deliver a sharp yet stable cutting edge in the machining of stainless steels. This combination improves wear resistance under fluctuating cutting conditions and supports a reliable tool life during medium‑duty turning. By choosing a grade optimised for the material, the process benefits from reduced edge chipping and more predictable regrinds, which translates into fewer unplanned tool changes and better overall productivity.

Geometry and clamping designed for repeatability

The rhombic 55° geometry with a 0° relief angle and a 0.8 mm corner radius provides a balance between profile detail and edge strength. The insert’s cylindrical central hole and a plate thickness of 4.76 mm ensure secure clamping when used with ISO‑compatible holders. Compatibility is governed by form, relief angle, tolerance class, fastening method, size and thickness—matching these parameters to the machine tool holder ensures repeatable positioning, consistent cutting engagement and improved dimensional control on workpieces.

Predictable chip control and reduced downtime

The insert is equipped with a double‑sided chipbreaker, which promotes controlled chip formation across a range of feeds and depths of cut. Proper pairing of chipbreaker and grade with the workpiece material reduces the risk of long, stringy chips and improves evacuation, lowering the chance of surface damage or interruption. This predictability supports higher machining stability and can shorten cycle times when the cutting data are tuned to the grade and geometry.

System‑level benefits and practical integration

As part of an ISO insert system, the DNMG format fits into a setup comprising the indexable plate, a matching external holder or boring bar, a shim/clamping set and replacement screws. The insert’s PVD coating enhances surface finish and corrosion resistance at the cutting edge, while the carbide substrate preserves toughness. For external profiling or finishing where profile accuracy matters, the 0.8 mm radius helps maintain an even transition between passes, offering a good compromise between corner strength and fine surface detail.

For tailored machining recommendations on Tungaloy turning solutions such as the DNMG 150408 AH6225, contact Metav Werkzeuge for technical advice and application support by email at info@metav-werkzeuge.com or by phone at +49 2822 7131930

Technical data

• Article number: 6825545
• Manufacturer SKU: TUN6825545
• Model series: ISO‑Drehwendeschneidplatten
• Designation: DNMG150408 AH6225

Facts

• Shape: rhombic, 55°
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Relief angle: 0°
• Hole: cylindrical central hole

Special features

• Material: carbide
• Coating/grade: AH6225 (PVD)
• Double‑sided chipbreaker
• Suitable for turning (external and internal)
• Compatible with ISO holders (check size, thickness, fastening)

FAQ

What materials is this insert best suited for?
The DNMG 150408 AH6225 insert is optimised for stainless steels; the PVD‑coated carbide grade AH6225 is tailored for medium machining under variable conditions.

How is holder compatibility determined?
Compatibility depends on the insert form, relief angle, tolerance class, fastening method, size and thickness; the DNMG150408 designation indicates the ISO size to match with appropriate external holders and boring bars.

What benefit does the 0.8 mm corner radius provide?
A 0.8 mm corner radius offers a compromise between edge strength and surface detail, making it suitable for profiling and finishing where both robustness and a fine finish are required.

Why choose a double‑sided chipbreaker?
The double‑sided chipbreaker promotes consistent chip formation in a range of cutting conditions, improving evacuation and reducing interruptions during turning with this insert.

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.