CNMG 120408 NS9530 Wendeplatten - Tungaloy

Benefit from the combination of an ISO-standard 80° rhombic geometry, an uncoated cermet grade (NS9530) and a 0.8 mm corner radius that together deliver superior surface finish and low cutting forces in finishing turning operations; order the insert via Metav Werkzeuge or consult our specialists for application guidance.

CNMG120408 NS9530 CNMG turning insert by Tungaloy — uncoated cermet, 80°

A CNMG120408 NS9530 ISO turning insert optimised for finishing cuts in steel, providing a sharp cutting edge and reduced cutting forces for consistent, high-quality surfaces.

• ISO CNMG120408 geometry, 80° angle
• Uncoated cermet grade NS9530 for finishing
• 0.8 mm corner radius for fine surface finish
• Double-sided chipbreaker, cylindrical hole design

Precision finishing for demanding turning operations

The insert offers a combination of sharp cutting geometry and a finishing-grade uncoated cermet (NS9530) that reduces built-up edge and produces a consistently smooth surface. The 80° rhombic geometry ensures stable support in the toolholder, while the 0.8 mm corner radius balances edge strength with the ability to achieve tight surface tolerances. These characteristics are particularly beneficial for continuous cuts and small depths of cut, where surface integrity and repeatability are essential for downstream processes.

Secure clamping and straightforward compatibility

Compatibility with standard toolholders is determined by the insert’s form, relief angle, tolerance class, fixing method, size and thickness. The CNMG shape and cylindrical hole permit reliable clamping in ISO-compatible holders, and the double-sided chipbreaker extends useful life by allowing the insert to be indexed. The nominal plate thickness and standard ISO designation simplify procurement and tool management in a production environment, reducing setup time and the risk of incorrect tooling selection.

Material-specific performance for steel applications

Designed as a finishing grade for steel, this uncoated cermet grade delivers low cutting forces and an inherently sharp edge that improves surface finish without relying on a coating. The reduced tendency to deform at the cutting edge supports consistent dimensional control on turned components. For operations that prioritise a superior finish over heavy material removal, this insert provides a cost-effective route to predictable, repeatable results on a broad range of steel alloys.

Operational efficiency and handling benefits

Using a finishing-grade insert with controlled geometry results in less vibration and improved stability, which in turn reduces scrap and rework. The insert’s ISO standard form and clear specification allow straightforward stocking and quick replacement, promoting uninterrupted production. As it is double-sided and indexable, the component contributes to lower tooling consumption per part and simplified inventory management, supporting efficient shop-floor workflows.

Contact Metav Werkzeuge for application advice and availability of the Tungaloy NS9530 finishing inserts; our advisors can confirm suitability for specific steel grades and provide recommended cutting parameters.

Technical Data

• Article number: 6998276
• Manufacturer SKU: TUN6998276
• SKU: 6998276-Tungaloy
• Model series: ISO turning indexable inserts
• Material: carbide

Facts

• Geometry: 80°
• Corner radius: 0.8 mm
• Plate thickness: 4.76 mm
• Plate size: 12 mm
• Relief angle: 0°
• Usable sides: 2

Special features

• ISO designation CNMG120408
• Uncoated cermet grade NS9530
• Finishing grade for steel with sharp cutting edge
• Double-sided chipbreaker
• Rhombic plate form
• Cylindrical hole for secure clamping
• Intended application: external and internal turning
• Compatibility determined by form, relief angle, tolerance class, fixing, size and thickness

FAQ

Is this insert suitable for finishing operations in steel?
The CNMG120408 NS9530 Tungaloy insert is specified as a finishing grade for steel and is designed to deliver low cutting forces and high surface quality in continuous turning operations.

How many cutting edges can be used before disposal?
The insert is double-sided and indexable; the CNMG120408 NS9530 insert provides two usable cutting positions per side as determined by the holder orientation and indexing practice.

Can the insert be used for internal as well as external turning?
Yes, the rhombic CNMG geometry and the cylindrical hole clamping allow the insert to be employed in both external and internal turning setups when mounted in compatible ISO holders.

Does the uncoated cermet grade require special cutting parameters?
The NS9530 grade is optimised for finishing with low feed and depth of cut; specific cutting speeds depend on workpiece alloy and machine rigidity, so parameter adjustment is recommended for best results with this Tungaloy finishing insert.

What advantages does the 0.8 mm corner radius provide?
A 0.8 mm corner radius offers a balance between edge strength and the ability to achieve fine surface finish, reducing vibration and improving stability during finishing passes with the CNMG120408 NS9530 insert.

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.