DNMG 150408 NS520 Wendeplatten - Tungaloy

Benefit from the combination of precise finishing ability and predictable wear: the DNMG150408 NS520 Tungaloy insert delivers a fine surface finish thanks to its NS520 cermet grade and a controlled 0.8 mm corner radius for accurate profiles; order the inserts directly via Metav Werkzeuge or consult the technical team for application matching.

DNMG150408 NS520 Tungaloy — DNMG turning insert, 55° geometry

A DNMG150408 NS520 Tungaloy ISO rhombic turning insert designed for finishing and light machining of steel, offering a 55° diamond form and a double-sided chipbreaker for economical indexable use

• ISO rhombic DNMG 55° cutting geometry
• NS520 cermet for fine finishing
• 0.8 mm corner radius for accurate profiles
• Double-sided chipbreaker, cylindrical hole

Consistent finishing performance for turning

The NS520 grade is formulated as a cermet option focused on finishing to light machining of steel: its microstructure prioritises a stable cutting edge, resulting in improved surface finish and dimensional accuracy during external and internal turning. Cermet materials combine hard ceramic phases with a metallic binder to deliver wear resistance at lower cutting forces; this means fewer edge changes and more consistent parts over a production run. For users seeking repeatable component quality, the combination of the grade and the insert geometry reduces the need for secondary finishing and lowers scrap rates.

Reliable fit and secure clamping for stable machining

Built to ISO form and tolerance, the rhombic insert and its 55° cutting geometry ensure compatibility with standard turning holders when the correct holder form, clearance angle and fastening arrangement are observed. The insert’s cylindrical hole and defined thickness (4.76 mm) contribute to repeatable seating and minimal play in the pocket, which reduces vibration and supports longer tool life. Clear information on geometry and tolerance allows the selection of the appropriate external holder or boring bar, so setup time is lowered and machining stability is improved.

Productivity gains from economical indexing and predictable wear

The double-sided chipbreaker provides two effective cutting edges per indexed face, extending usable life before replacement and reducing cost per cutting edge. A 0.8 mm corner radius offers a balance between strength and profile accuracy, suitable for fine finishing without compromising edge robustness. The insert’s format and chipformer are optimised to produce consistent chips and to lower the risk of built-up edge when machining steel, which helps maintain cycle times and reduces unplanned downtime. Overall, the design supports efficient production workflows and reliable part quality.

Contact Metav Werkzeuge for a precise holder compatibility check and to request technical recommendations for integrating the DNMG150408 NS520 Tungaloy inserts into existing turning operations; eMail info@metav-werkzeuge.com or call +49 2822 7131930 for tailored advice and ordering support.

Technical data

• Article number: 6803431
• Manufacturer SKU: TUN6803431
• Model designation: DNMG150408 NS520
• Manufacturer: Tungaloy
• Material: Hartmetall
• Grade/coating: NS520
• Application: Turning

Dimensions & core data

• Corner radius: 0.8 mm
• Thickness: 4.76 mm
• Inscribed circle / size: 15 mm
• Cutting angle: 55°
• Clearance angle: 0°
• Chipbreaker type: double-sided
• Plate hole: cylindrical hole

Features & compatibility

• ISO rhombic turning insert
• Compatible with ISO turning holders and boring bars
• Suited for finishing to light machining of steel
• Two usable cutting edges per indexed face
• Rhombic form for external and internal turning
• Stable chip control for consistent surface quality

FAQ

What types of materials is this insert intended for? The DNMG150408 NS520 Tungaloy insert is specified for finishing to light machining of steel, with the NS520 cermet grade tuned for good surface quality and even wear when turning steel.

How many cutting edges are available per insert? Each indexable face offers two usable edges due to the double-sided chipbreaker design; the insert can be rotated to present a fresh edge before replacement.

What does the 55° geometry mean for my turning process? A 55° rhombic geometry provides a versatile approach for both external and internal turning, enabling controlled cutting forces and good access to workpiece contours compared with larger or smaller included angles.

Which holder characteristics are required for correct compatibility? Compatibility depends on holder form, free/clearance angle (0° specified), tolerance class, fastening method, size and plate thickness; verify holder pocket dimensions against the DNMG150408 ISO form to ensure secure seating.

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.