DPMT 11T304 AH6225 Wendeplatten - Tungaloy

Take advantage of the combination of PVD-coated carbide performance, a sharp, stable cutting edge, and ISO compatibility for reliable stainless-steel turning; order directly via Metav Werkzeuge or contact our consultants for application advice.

DPMT 11T304 AH6225 Tungaloy Turning Insert — ISO rhombic 55° (0.4 mm corner radius)

DPMT11T304 AH6225 is a precision ISO-conforming turning insert for external and internal turning, optimised for stainless steels and medium cutting conditions

• PVD-coated carbide grade AH6225
• ISO rhombic 55° geometry
• 0.4 mm corner radius for reliable edge strength
• Cylindrical hole with 40°–60° countersink

Precision and productivity for stainless-steel turning

The PVD-coated carbide composition of this insert combines wear resistance with a consistently sharp edge. Designed as a universal grade for stainless steels, the AH6225 coating and substrate balance heat resistance and edge stability, reducing flank wear under varying cutting conditions. The rhombic 55° geometry provides a versatile approach angle that supports both light finishing and medium roughing passes, while the 0.4 mm corner radius increases edge robustness where repeated contact and interrupted cuts occur. This results in fewer insert changes and more continuous production cycles.

Compatibility and mounting for straightforward toolsetting

Installed in ISO-standard external holders or boring bars, the indexable plate is compatible where form, clearance angle, tolerance class, clamping style, size and thickness match the toolholder. The insert features a cylindrical hole with a single-sided countersink (40°–60°) to ensure stable clamping and repeatable seating in the pocket. Using ISO-compliant geometry simplifies tooling procurement and reduces setup time, enabling consistent repeatability across different machines and operators.

Chip control and surface integrity

The one-sided chipbreaker geometry is optimised for the grade and intended cutting ranges, promoting manageable chip formation when machining stainless steels. Stable chip formation contributes directly to improved surface finish and reduced secondary operations. In practice, selecting the appropriate feed and depth of cut together with the AH6225 grade can lower the incidence of built-up edge and improve process stability on both external and internal turning operations.

Practical benefits in production and tool management

Adopting ISO turning plates with a universal grade like AH6225 simplifies inventory and tooling strategy: fewer grades cover a broader range of materials, while the PVD-coating lengthens useful life under typical plant conditions. The insert’s medium-thickness profile and standardized diameter make it compatible with common holders, supporting fast replacement and predictable performance. For shops prioritising uptime and consistent results, this type of indexable insert reduces logistical complexity and supports efficient batch processing.

For tailored advice on integrating the Tungaloy AH6225 turning insert into production or for rapid ordering, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 — our technical consultants provide application-focused recommendations and availability details.

Technical data

• Article number: 6951249
• Manufacturer SKU: TUN6951249
• Metav SKU: 6951249-Tungaloy
• Series: ISO turning indexable inserts
• Grade: AH6225
• Cutting material: PVD-coated carbide

Core dimensions

• Geometry angle: 55°
• Inscribed circle / size: 11 mm
• Thickness: 3.97 mm
• Clearance angle: 11°
• Corner radius: 0.4 mm
• Hole: with hole

Special features

• Rhombic plate form
• One-sided chipbreaker
• Cylindrical hole with single-sided countersink (40°–60°)
• Universal grade for stainless steels
• Intended use: external and internal turning
• ISO-compliant design for compatible holders

FAQ

What materials is this insert suitable for?
The insert is designed primarily for stainless steels; the AH6225 grade and PVD-coated carbide construction support medium cutting conditions and variable workpiece properties.

How does the 0.4 mm corner radius affect performance?
A 0.4 mm corner radius provides a balance between a sharp edge for good surface finish and sufficient edge strength for interrupted cuts and moderate feed rates with the DPMT11T304 AH6225 insert.

Which holders are compatible with this insert?
Compatibility depends on ISO geometry, clearance angle and size; the DPMT11T304 shape and ISO-compliant dimensions permit use in standard rhombic 55° external holders and boring bars that accept 11 mm inscribed circle inserts.

How does the hole and countersink support clamping?
The cylindrical hole with a single-sided countersink (40°–60°) ensures secure seating and repeatable clamping, improving stability during turning operations with the Tungaloy insert (article 6951249).

Is this insert suited for finishing or roughing operations?
With its AH6225 universal grade and rhombic 55° form, the plate is suitable for both finishing and medium roughing; cutting parameters should be adjusted to the workpiece and machine rigidity.

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.