DPMT 070204 AH6225 Wendeplatten - Tungaloy

Take advantage of the combination of reliable cutting performance, universal suitability for stainless steel and straightforward ISO compatibility to maintain a consistent production flow; order directly via Metav Werkzeuge or ask the consultants for tailored machining advice.

DPMT 070204 AH6225 indexable turning insert for Turning – Tungaloy

The DPMT070204 AH6225 is an ISO‑format indexable turning insert engineered for external and internal turning, offering a sharp but stable cutting edge for machining stainless steel under varying conditions.

• PVD-coated cemented carbide grade AH6225
• Sharp yet robust cutting edge
• ISO‑format rhombic 07 with 11° clearance
• Suitable for external and internal turning

Consistent cutting performance for varying conditions

The combination of a PVD‑coating and a cemented carbide substrate gives the insert a balance of wear resistance and edge sharpness that supports medium‑depth turning operations. The AH6225 grade is formulated as a universal choice for stainless steel, providing stable chip formation and extended edge life where machining conditions change between batches or part geometries. This results in fewer indexings and a more predictable tool life, which benefits batch production and mixed‑lot workflows.

Secure mounting and straightforward ISO compatibility

Designed as an ISO‑format plate, the component fits standard holders when form, clearance angle, tolerance class, clamping and size match. The rhombic 07 shape with an 11° clearance and a 0.4 mm corner radius helps to reduce cutting forces at the corner while maintaining a controlled contact zone. The insert’s cylindrical hole with a single‑side countersink (40°–60°) ensures reliable seating and repeatable clamping when used with the correct backing pad, clamp set and replacement screw, reducing the risk of positional deviation during high‑speed turning.

Practical selection and application guidance for turning tasks

For outer and inner turning the one‑sided chipbreaker geometry supports consistent swarf control in through‑cut and profiling operations. Choose the chipbreaker and grade combination based on workpiece stability, material batch and depth of cut rather than increasing cutting speed alone. For general production of stainless steel, the AH6225 grade offers a practical compromise: good surface finish potential, stable edge retention and broad applicability across multiple stainless grades without frequent insert changes.

For machining stainless steel with the AH6225 grade, contact Metav Werkzeuge for purchase and application advice at info@metav-werkzeuge.com or by phone on +49 2822 7131930 — guidance is available for holder selection and process optimisation.

Technical data

• Article number: 6951279-Tungaloy
• Manufacturer article number: 6951279
• Manufacturer SKU: TUN6951279
• Model series: ISO turning indexable inserts
• Material: Cemented carbide

Facts

• ISO designation: 070204
• Size: 07
• Thickness: 2.38 mm
• Corner radius: 0.4 mm
• Clearance angle: 11°
• Shape angle: 55°
• Hole: with hole

Special features

• Grade/coating: AH6225, PVD‑coated
• Plate form: Rhombic
• Chipbreaker: One‑sided
• Hole style: Cylindrical hole + single‑side countersink (40°–60°)
• Typical application: External and internal turning
• Compatibility: ISO‑standard holder interface; requires matching form, tolerance and clamping

FAQ

Is this insert suitable for external and internal turning?
The DPMT070204 AH6225 indexable turning insert is specified for both external and internal turning and is supplied in an ISO rhombic 07 format suitable for a wide range of applications.

Which materials is the AH6225 grade intended for?
The AH6225 grade is optimised as a universal grade for machining stainless steel, offering balanced wear resistance and edge sharpness for variable stainless steel turning tasks.

How does the insert secure to the holder?
The plate uses a cylindrical centre hole with a single‑side countersink (40°–60°) to ensure stable seating when combined with the appropriate backing pad, clamp set and replacement screw for ISO holders.

What is the corner radius and why does it matter?
The insert has a 0.4 mm corner radius; this small radius reduces cutting forces for finer profiles while still providing sufficient edge strength for medium cutting depths.

Can the insert be used at high cutting speeds?
The PVD coating and cemented carbide substrate support higher cutting speeds compared with uncoated grades, but optimal speed should be selected based on the specific stainless steel grade and workpiece stability.

Is a specific chipbreaker required for different operations?
The one‑sided chipbreaker of this insert is designed for general turning; for specialised finishing or heavy roughing, choose a chipbreaker and grade matched to the desired surface finish and chip control.

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.