DNMG 150408 AH6225 Wendeplatten - Tungaloy

Take advantage of the combination of a sharp, stable cutting edge and a universal PVD-coated grade for consistent productivity in turning operations; order directly via Metav Werkzeuge or consult the technical team for setup advice.

DNMG 150408 AH6225 turning insert — Tungaloy PVD-coated carbide, 55° rhombic

The DNMG150408 AH6225 is an ISO-standard rhombic turning insert for external and internal turning, optimised for rostfreier Stahl and medium machining tasks.

• PVD-coated carbide grade AH6225
• Designed for rostfreier Stahl machining
• Rhombic 55° geometry with 0.8 mm nose radius
• Double-sided chipbreaker, cylindrical hole

Delivering consistent productivity with a universal PVD grade

The DNMG150408 AH6225 insert combines a PVD-coated surface with a tough carbide substrate to deliver a stable cutting edge under varying conditions. The AH6225 grade is engineered as a universal solution for rostfreie Stähle, balancing wear resistance and chip control for medium cutting depths. This balance results in reduced tool change frequency and predictable component quality, supporting steady production flow and lower per-part machining costs. The coating enhances resistance to built-up edge and keeps flank wear progression gradual during mixed batches.

Geometry and compatibility that speed up set-up

The rhombic 55° geometry and 0.8 mm nose radius provide a versatile cut profile suitable for finishing and medium turning. The insert features a 0° clearance angle and a cylindrical hole, enabling secure clamping in compatible holders. Compatibility with toolholders is governed by form, clearance angle, tolerance class, fastening method, size and thickness; matching these parameters ensures repeatable seating and concentricity. Because the system comprises the indexable insert, an external holder or boring bar, a shim/clamp set and replacement screws, correct selection reduces vibration and improves surface finish.

Practical application guidance for rostfreier Stahl and variable conditions

Use the double-sided chipbreaker for reliable chip formation when machining rostfreier Stahl; the two usable cutting edges per side extend service intervals. For unstable setups or interrupted cuts, the AH6225 grade maintains edge stability while avoiding premature chipping. In stable fixtures with consistent chip evacuation, higher feeds can be applied to increase metal removal rates. When switching between external and internal turning, verify holder rigidity and coolant strategy to preserve edge life and surface integrity. The insert’s characteristics make it suitable for shops aiming for reproducible cycle times and consistent component tolerances.

Longevity, economy and safe handling on the shop floor

The PVD coating and carbide core combine to offer long tool life and good resistance to thermal and adhesive wear, contributing to lower tooling costs over production runs. Thanks to the double-sided layout, indexing is quick and downtime is reduced. When replacing inserts, use the specified clamping screws and ensure correct torque to maintain positional accuracy. Spare parts and compatible accessories are part of the system build-up; stocking a consistent set of shims and screws simplifies maintenance and keeps machines running. The product supports productive turning with reliable edge performance, promoting both efficiency and quality control.

For technical consultation or to request a tailored supply of Tungaloy AH6225 inserts, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 for prompt assistance and order support

Technical data

• Manufacturer article number: 6890265
• SKU: 6890265-Tungaloy
• Manufacturer SKU: TUN6890265
• Model series: ISO turning inserts
• Material: Hartmetall

Key dimensions

• Size: 15 mm
• Thickness: 4.76 mm
• Nose radius: 0.8 mm
• Insert angle: 55°
• Clearance angle: 0°

Features

• Coating: PVD, grade AH6225
• Chipbreaker: double-sided
• Plate form: rhombic
• Hole: with cylindrical hole
• ISO designation: DNMG150408
• Application: Turning

FAQ

Is this insert suitable for rostfreier Stahl?
The DNMG150408 AH6225 insert (Tungaloy, 6890265) is specified as a universal grade for rostfreie Stähle and performs well under medium cutting conditions with good chip control.

What chipbreaker is fitted to this insert?
The insert uses a double-sided chipbreaker designed to produce short, controllable chips in turning applications and to extend usable edge life through indexing.

Which geometry and nose radius does the insert have?
This indexable insert features a rhombic 55° geometry with a 0.8 mm nose radius and a 0° clearance angle for versatile turning tasks.

Can the insert be used for internal turning as well as external turning?
Yes, the insert is suitable for both external and internal turning when combined with an appropriate boring bar or holder that matches form, size and fastening requirements.

What benefits does the AH6225 PVD coating provide?
The AH6225 PVD-coated carbide offers enhanced resistance to built-up edge and steady wear progression, delivering reliable cutting performance and improved surface finish in variable machining conditions.

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.