DNMG 150408 AH6225 Wendeplatten - Tungaloy

Take advantage of the combination of a sharp but stable cutting edge, ISO compatibility and economical double-sided use for reliable medium-duty turning of stainless steels; order the insert directly from Metav Werkzeuge or consult our specialists for process advice.

DNMG150408 AH6225 indexable turning insert — rhombic 55° geometry for turning

The DNMG150408 AH6225 is an ISO-standard rhombic indexable insert intended for external and internal turning in stainless steels, offering a balance of sharpness and edge stability for medium machining operations.

• DNMG150408 AH6225 indexable insert
• PVD-coated carbide for stainless steel
• Rhombic 55° cutting geometry
• Double-sided with cylindrical hole

Reliable cutting performance for stainless-steel turning

The AH6225 grade combines a PVD-coated carbide substrate with a geometry tuned for stainless steels, giving a cutting edge that is both sharp and stable under variable conditions. This balance reduces the need for frequent tool changes in mixed-production environments, improving uptime and process consistency. The grade is optimised for medium cutting depths where both surface finish and edge life matter, and the hardened coating contributes to wear resistance during interrupted or unstable cuts. Operators benefit from predictable tool behaviour, fewer rejects and a more economical production flow.

Secure fit and economical double-sided use for production safety

Compatibility with toolholders follows ISO rules: the insert’s form, 0° clearance, tolerance class, fixing method, size and thickness determine a correct fit. The rhombic 55° shape and cylindrical hole enable secure clamping in standard DNMG holders, while the double-sided design allows the insert to be rotated and reused, lowering per-cutting-edge cost. The typical system comprises the indexable insert, a matched external holder or boring bar, a shim/clamp and replacement screws; correct assembly and tightening ensure repeatable seating and safe operation on automated lathes.

Operational advantages: chip control, tool life and surface quality

The insert’s 0.8 mm corner radius and integrated double-sided chipbreaker provide controlled chip formation and stable cutting forces, which supports consistent surface finish and reduces spindle load. The 4.76 mm plate thickness and 15 mm inscribed size give structural rigidity for moderate depths of cut. The PVD layer improves resistance to built-up edge and flank wear, extending effective tool life. These attributes combine to lower downtime and increase throughput in batch or job-shop turning, demonstrating a favourable cost-per-component when compared to uncoated grades.

Practical application notes and selection guidance

Intended primarily for turning operations, the insert suits both external and internal applications when matched with the correct holder geometry and machining parameters. Selection of chipbreaker style and feed rates should consider material condition and part stability; the AH6225 grade performs well in changing conditions but benefits from stable workholding and coolant strategies where appropriate. For machining programmes requiring repeatable surface quality, the ISO-standardised form and consistent edge geometry simplify tool management and inventory control.

For process-secure stainless-steel turning, choose the Tungaloy DNMG150408 AH6225 indexable insert and contact Metav Werkzeuge for application-specific recommendations or to request detailed cutting data via info@metav-werkzeuge.com or +49 2822 7131930.

Technical data

• Article number: 6947117
• SKU: 6947117-Tungaloy
• Manufacturer SKU: TUN6947117
• Model series: ISO-Drehwendeschneidplatten
• Material: carbide

Facts

• Inscribed size: 15 mm
• Plate thickness: 4.76 mm
• Corner radius: 0.8 mm
• Approach/lead angle: 55°
• Clearance angle: 0°
• Hole: with hole (cylindrical)

Special features

• Grade: AH6225
• Coating: PVD
• Shape: rhombic
• Chipbreaker: double-sided
• Design: double-sided indexable insert with cylindrical hole
• Typical application: external and internal turning of stainless steels

FAQ

What materials is this insert suitable for? The DNMG150408 AH6225 indexable insert (SKU 6947117-Tungaloy) is formulated as a universal grade for stainless steels, providing a balanced cutting edge for medium machining operations.

How is holder compatibility determined for this insert? Compatibility depends on the insert form, 0° clearance, tolerance class, fixing method, size (15 mm) and plate thickness (4.76 mm); matching the DNMG profile in the holder ensures correct seating and safe clamping.

Can the insert be rotated or reversed to use both sides? Yes, the insert is double-sided, allowing cost-effective rotation to access the second cutting edge when the first is worn.

What are the key geometry values to note when programming feeds and speeds? Reference the 55° approach angle and 0.8 mm corner radius when setting feeds and depths of cut; these factors influence chip formation and surface finish.

Is this insert suitable for internal boring as well as external turning? The geometry and ISO standardisation of the DNMG150408 make it suitable for both external and internal turning when paired with a compatible boring bar or holder and appropriate process parameters.

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.