DNMG 150412 AH6225 Wendeplatten - Tungaloy

Benefit from the combination of a PVD-coated carbide grade and a 1.2 mm corner radius for stable edges and improved surface quality in stainless-steel turning; the ISO DNMG150412 format guarantees interchangeability with standard holders. Order the insert directly via Metav Werkzeuge or consult our technical advisors for grade and chipbreaker selection.

DNMG150412 AH6225 Tungaloy indexable turning insert — PVD-coated, 1.2 mm radius, 55° rhombic

A DNMG150412 AH6225 Tungaloy indexable insert designed for external and internal turning, optimised for intermittent conditions and machining of stainless steels

• PVD-coated carbide grade AH6225
• 1.2 mm corner radius for consistent finishes
• ISO DNMG150412, rhombic 55° geometry
• Double-sided chipbreaker, with cylindrical hole

Reliable edge stability for stainless-steel turning

The combination of a PVD coating and a cemented carbide substrate offers consistent performance when machining stainless steels under varying conditions. The AH6225 grade is engineered to deliver a sharp yet robust cutting edge, which reduces the tendency for work-hardening and promotes a predictable tool life. For shops facing mixed batches and changing cut parameters, this balance between edge acuity and stability helps to maintain component tolerances while limiting tool changes. The insert format conforms to the ISO DNMG150412 specification, ensuring straightforward replacement in widely used holders.

System compatibility and easy integration

Designed to the ISO standard, the insert fits common external holders and boring bars where form, clearance angle, size and thickness match the carrier. The rhombic 55° geometry with a 1.2 mm nose radius makes the component versatile for both finishing and light-medium roughing operations. The through-hole with cylindrical seating supports reliable clamping and repeatable positioning; this reduces setup time and enables quick interchange in production environments. Because the insert is double-sided, overall cost per cutting edge is lowered while stock keeping is simplified.

Operational advantages and productivity effects

Using a PVD-coated cemented carbide grade such as AH6225 leads to improved surface quality and extended edge life in many stainless-steel applications. The robust coating provides thermal and adhesive wear resistance, so feeds and cutting speeds can often be increased compared with uncoated grades, improving cycle times. The double-sided design and standard ISO format contribute to lower tooling costs and faster tool changes, which together enhance throughput and machine uptime. These practical benefits support efficient machining strategies and predictable process outcomes.

Choosing the right chipbreaker and cutting parameters

The double-sided chipbreaker incorporated with this insert is intended for general-purpose turning; select the specific chip control variant based on material, feed and depth of cut. In stainless-steel turning, conservative feed increases and appropriate coolant or lubrication regimes help to avoid built-up edge and maintain dimensional accuracy. When pairing the insert with a holder, verify geometry match—form, clearance angle (0° free angle in the data), tolerance class and thickness—to ensure clamping security and repeatability. For support with parameter selection, consult technical data sheets or contact the dealer for tailored recommendations.

For availability, matching holder advice and expert selection of Tungaloy AH6225 inserts, contact Metav Werkzeuge by email at info@metav-werkzeuge.com or by telephone at +49 2822 7131930 for personalised assistance

Technical data

• Article number: 6825698

• Manufacturer SKU: TUN6825698

• Supplier SKU: 6825698-Tungaloy

• Designation: DNMG150412

• ISO code: 150412

• Grade: AH6225

• Coating: PVD

• Material: cemented carbide

• Geometry: DNMG, rhombic 55°

• Corner radius: 1.2 mm

• Thickness: 4.76 mm

• Inscribed circle / size: 15 mm

• Hole: with hole, cylindrical hole style

• Chipbreaker: double-sided

• Application: turning (external and internal)

FAQ

What materials is this insert suitable for?
The AH6225 PVD-coated cemented carbide grade is intended primarily for stainless steels and is engineered to give a stable cutting edge under moderate cutting conditions.

How does the DNMG150412 geometry affect cutting performance?
The rhombic 55° geometry with a 1.2 mm nose radius provides a good compromise between strength and surface finish, making it suitable for finishing and light-medium roughing.

Is the insert reversible and how many usable edges does it have?
The insert is double-sided, providing multiple cutting edges per insert to reduce tooling costs and improve utilisation.

What should be checked when fitting the insert to a holder?
Compatibility is determined by form, clearance/free angle, tolerance class, clamping method, size and thickness—verify these parameters against the holder specification to ensure correct fit and clamping security.

Can the Tungaloy AH6225 grade be used for interrupted cuts?
Yes; the grade is designed to balance edge sharpness and toughness, making it suitable for many interrupted and mixed-condition turning operations.

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.