DNMG 150408 NS9530 Wendeplatten - Tungaloy

Take advantage of the combination of a finishing-grade NS9530 uncoated cermet, ISO compatibility and a 0.8 mm corner radius for consistently high surface quality and low cutting forces; order genuine inserts via Metav Werkzeuge or consult our team for application advice.

DNMG150408 NS9530 Tungaloy indexable turning insert — ISO turning insert for finishing steel, 55° rhombic geometry

A DNMG150408 NS9530 Tungaloy indexable insert designed for precision external and internal turning, optimised as a finishing grade for steel with low cutting forces and a sharp cutting edge.

• ISO DNMG 150408 format, 55° cutting geometry
• NS9530 uncoated cermet for finishing steel
• 0° clearance angle for stable cutting
• 0.8 mm corner radius for fine surface finish
• Double-sided insert with cylindrical hole

Precision finishing for steel turning

The uncoated cermet NS9530 is specified for finishing operations where a sharp cutting edge and low cutting forces are essential. As a finishing grade, it delivers a superior surface finish on steel in continuous cutting conditions and when using small depths of cut. The fine edge geometry reduces built-up edge and enables consistent part quality, making this insert particularly suitable for components that require tight tolerances and excellent visual appearance. The combination of grade and geometry yields a reliable balance between surface integrity and tool life.

Compatibility, clamping and mounting considerations

This insert follows the ISO DNMG150408 standard format and is compatible with ISO holders when form, relief angle, tolerance class, mounting method, size and thickness match. The rhombic shape with a 55° approach angle supports both external and internal turning strategies, while the cylindrical hole ensures secure clamping with standard screws and clamp assemblies. When selecting a holder, confirm the seating design and tolerance class to maintain repeatable positioning and to avoid chatter; correct clamping contributes directly to process stability and consistent component quality.

Material behaviour and why cermet works here

Cermet cutting materials combine ceramic and metallic properties to offer excellent edge stability and a resistance to plastic deformation at the cutting edge. The NS9530 grade, being uncoated, is tuned for fine finishing on steel: it keeps the edge sharp under continuous cuts and small feed rates, producing low cutting forces and improved surface roughness. For operators unfamiliar with cermet behaviour: the material excels in stable cutting windows and is less tolerant of heavy interrupted cuts than some coated carbides, so it is ideal for dedicated finishing passes and high-quality external profiles.

Process benefits and shop-floor effects

Using a purpose-designed finishing insert such as this leads to tangible production advantages: shorter secondary processing, reduced rework, and more predictable part-to-part quality. The 0.8 mm corner radius supports fine transitions on turned contours and helps achieve required surface specifications without sacrificing edge strength. The double-sided configuration provides economical indexability, while ISO conformity simplifies tool inventory and changeovers. Overall, the insert contributes to efficient machining cycles, consistent finishing results and predictable tool replacement intervals.

Contact Metav Werkzeuge for tailored application advice and availability of genuine Tungaloy DNMG150408 NS9530 inserts via info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6998152
• Manufacturer SKU: TUN6998152
• Brand: Tungaloy
• Model series: ISO-Drehwendeschneidplatten

Facts

• Geometry: DNMG150408 / 55°
• Corner radius: 0.8 mm
• Plate thickness: 4.76 mm
• Plate size: 15 mm
• Clearance angle: 0°
• Hole style: cylindrical hole
• Chipbreaker: double-sided
• Plate shape: rhombic

Special features

• Uncoated cermet cutting material NS9530
• Finishing grade for steel with sharp cutting edge
• Intended application: Turning (external and internal)
• Compatibility requires matching holder form, relief angle and tolerance class
• System: ISO turning insert, appropriate external holder or boring bar, shim/clamp set and replacement screws

FAQ

What machining tasks suit this insert best? This DNMG150408 NS9530 insert is intended for precision finishing in turning operations on steel, providing low cutting forces and high surface quality in continuous cuts.

Can the insert be used for internal turning as well as external turning? Yes. The DNMG150408 format and 55° rhombic geometry make the insert suitable for both external and internal turning when the correct holder and mounting are used.

How does the NS9530 grade compare to coated carbides for finishing? The NS9530 uncoated cermet offers a very sharp edge and excellent surface finish on steel; it is well suited to continuous finishing passes, though it is less tolerant of heavy interrupted cuts than some coated carbide grades.

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.