CNMG 120404 NS9530 Wendeplatten - Tungaloy

Take advantage of the finishing performance of the NS9530 cermet grade combined with ISO compatibility and a compact 0.4 mm corner radius for consistently high surface quality and low cutting forces. Order the insert directly via Metav Werkzeuge or consult the team for holder compatibility and process setup.

CNMG 120404 NS9530 ISO turning insert for finishing by Tungaloy

CNMG120404 NS9530 is an ISO-standard rhombic turning insert designed for finishing steel in external and internal turning operations.

• ISO-format rhombic indexable insert
• Uncoated cermet grade NS9530 for finishes
• 0.4 mm corner radius for fine detail
• Cylindrical hole for secure clamping

Greater productivity through low cutting forces and superior finish

The NS9530 grade is an uncoated cermet developed for finishing applications in steel, providing a sharp cutting edge and reduced cutting forces that translate into improved tool life and fewer rework cycles. Cermet cutting materials combine ceramic and metallic properties to sustain a keen edge at low to moderate cutting speeds; this makes the insert particularly suited to continuous cuts and small depths of cut, where surface integrity matters. The result is a reproducible, high-quality surface finish with lower vibration sensitivity than many alternatives.

Reliable geometry and ISO compatibility for straightforward integration

The CNMG120404 geometry features an 80° included angle, a 0° relief angle, and a 0.4 mm corner radius, all conforming to ISO dimensions to ensure compatibility with a wide range of external holders and boring bars. Compatibility is determined by form, relief angle, tolerance class, clamping method, size and thickness; the rhombic shape and cylindrical hole provide secure mounting and permit indexing to a fresh cutting edge when required. Clear explanation of these parameters simplifies selection: the included angle governs clearance and strength, the radius affects edge robustness and finish, and the hole style dictates clamping options.

Stable chip control and application guidance for consistent results

Equipped with a double-sided chipbreaker, the insert assists in controlled chip formation during finishing passes, which reduces the risk of surface damage and improves process stability. Typical system setup comprises the ISO insert plus a matching external holder or boring bar, a backing/locking set and replacement clamp screws. For finishing steel, select conservative feed rates and ensure machine rigidity; the cermet grade performs best at moderate speeds with consistent, light passes. For indexable tooling strategies, the reversible nature of the insert helps lower tooling costs while maintaining repeatable quality.

For process assurance with Tungaloy finishing inserts, contact Metav Werkzeuge for stock availability and holder compatibility — experts are available to advise on setup and selection via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6998128
• Manufacturer SKU: TUN6998128
• SKU: 6998128-Tungaloy

Facts

• Corner radius: 0.4 mm
• Insert size: 12 mm
• Thickness: 4.76 mm
• Included angle: 80°
• Relief angle: 0°
• ISO designation: 120404

Special features

• Uncoated cermet grade NS9530
• Rhombic insert shape
• Double-sided chipbreaker
• Cylindrical hole for clamping
• ISO-series indexable turning insert
• Typical application: external and internal turning

FAQ

What machining tasks is this insert best suited for? The CNMG120404 NS9530 insert is optimised for finishing operations in steel, providing a sharp edge and low cutting forces ideal for continuous cuts and fine surface quality.

How does the NS9530 cermet grade differ from coated carbide options? NS9530 is an uncoated cermet designed to retain a sharp edge and offer excellent surface finish at moderate cutting speeds; it differs from coated carbide by favouring edge integrity over extreme wear resistance at very high speeds.

Is the insert compatible with standard CNMG holders? Compatibility depends on holder form, relief angle, tolerance class, clamping method, size and thickness; the CNMG120404 conforms to ISO dimensions to simplify matching with standard holders and boring bars.

Can the insert be indexed to reduce tooling costs? Yes, the insert is double-sided and indexable, allowing the unused edge to be rotated into service, which supports cost-effective tooling strategies.

Does the insert include a chipbreaker and what benefit does it provide? The insert features a double-sided chipbreaker that promotes controlled chip formation, improving process stability and reducing the risk of surface damage during finishing.

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.