DNMG 150404 NS520 Wendeplatten - Tungaloy

Benefit from the combination of the NS520 cermet grade and the rhombic DNMG form with a 0.4 mm corner radius for superior surface quality and consistent wear behaviour; the ISO‑standard 55° geometry and 4.76 mm thickness ensure reliable compatibility with standard turning holders — order the DNMG150404 NS520 Tungaloy insert directly via Metav Werkzeuge or ask our consultants if needed

DNMG150404 NS520 Tungaloy turning insert (DNMG, 55° rhombic, 0.4 mm radius)

A DNMG150404 NS520 Tungaloy turning insert designed for finishing to light machining of steel, optimised for surface quality and tight dimensional control

• ISO‑standard 55° rhombic geometry
• NS520 cermet for high surface finish
• 0.4 mm corner radius for fine profiles
• Double‑sided chipbreaker, with hole

High‑precision finishing with a cermet cutting edge

The NS520 grade is a cermet or coated cermet composition developed for finishing to light machining of steel, delivering a measurable improvement in surface integrity. The harder yet lubricious nature of cermet promotes a smooth contact with the workpiece, which helps to maintain dimensional accuracy during steady‑state cuts. For customers seeking consistently fine surfaces, this material choice reduces built‑up edge and supports longer periods between tool changes, providing a predictable process window in serial production.

ISO geometry for straightforward holder compatibility

Built to the ISO DNMG form, the insert features a 55° geometry and a 0.4 mm radius, with a 4.76 mm thickness and rhombic profile that match common external and internal turning holders. The standardised dimensions simplify tool selection: compatibility with a given holder is determined by form, clearance angle, tolerance class, fastening, size and thickness. The item includes a cylindrical centre hole for secure clamping and is double‑sided for economical use of the cutting edges. These features together reduce set‑up time and improve interchangeability on production lines.

Controlled chips and even wear for reliable cycle times

A double‑sided chipbreaker tailored to finishing tasks supports predictable chip formation and evacuation, which is crucial when machining medium‑to‑high‑quality steels. The NS520 composition offers stable wear characteristics that contribute to uniform flank wear and consistent part finishes over life. Explaining briefly: chipbreakers alter how the chip curls and breaks, reducing risk of entanglement and improving surface consistency. This combination of chip control and wear resistance helps to maintain cycle time reliability and lowers scrap rates in repetitive operations.

Practical system considerations and application scope

This insert is intended for external and internal turning operations and forms part of a system comprising an ISO insert, suitable external holder or boring bar, backing pad/clamp set and spare screws. Selection of the correct chipbreaker and grade should match workpiece material, machining strategy and machine stability; for less rigid setups the finishing‑oriented NS520 grade helps to compensate for minor variances. Where required, consult process documentation or reach out for application‑specific advice to ensure the insert aligns with production targets and machining parameters.

For high‑quality finishing with proven Tungaloy performance, contact Metav Werkzeuge for availability and application guidance — Metav Werkzeuge can advise on holder compatibility and batch supply; eMail: info@metav-werkzeuge.com | Tel: +49 2822 7131930

Technical data

• Article number: 6803274
• SKU: 6803274-Tungaloy
• Model series: ISO‑Drehwendeschneidplatten
• Shape: Rhombic

Facts

• Geometry angle: 55°
• Corner radius: 0.4 mm
• Plate thickness: 4.76 mm
• Plate size: 15 mm
• Clearance angle: 0°
• Manufacturer article number: 6803274

Special features

• Grade: NS520 (cermet / coated cermet)
• Schneidstofftyp: cermet or coated cermet
• Double‑sided chipbreaker
• Cylindrical centre hole
• Rhombic plate form (DNMG)
• Intended application: finishing to light machining of steel
• Compatible with ISO turning holders

FAQ

What materials is the insert suitable for? The DNMG150404 NS520 Tungaloy insert is intended primarily for steel machining, with the NS520 cermet grade optimised for finishing to light machining of steel and producing high surface quality.

Is this insert compatible with standard ISO holders? Yes; the DNMG form and ISO‑standard dimensions mean compatibility depends on form, clearance angle, tolerance class, fastening, size and thickness, so standard DNMG‑compatible holders will accept this insert.

How does the NS520 grade differ from cemented carbide? NS520 is a cermet composition (or coated cermet), offering improved surface finish and reduced tendency for built‑up edge compared with some cemented carbides, making it suitable for finishing and light feeds.

Can the insert be used for internal turning? The geometry and rhombic DNMG form allow use in both external and internal turning applications, provided the chosen holder or boring bar supports the insert dimensions and clamping method.

How should the chipbreaker be selected for my application? Select the chipbreaker and grade according to workpiece material, machining type and machine stability; the double‑sided chipbreaker on this insert is geared towards controlled chip formation during finishing 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.