CNMG 120408 NS9530 Wendeplatten - Tungaloy

Take advantage of precise finishing performance and economical double‑sided use: the uncoated NS9530 cermet grade delivers a sharp cutting edge and low cutting forces for consistent surface quality. Order directly via Metav Werkzeuge or contact our consultants for holder compatibility and application advice.

CNMG 120408 NS9530 — Turning insert (ISO) by Tungaloy

The CNMG 120408 NS9530 is an ISO‑standard turning insert designed for finishing operations on steel, offering a sharp cutting edge for continuous cuts and small depths of cut.

• ISO‑standard CNMG insert for turning
• Uncoated cermet grade NS9530 for finishing
• Double‑sided chipbreaker for economy
• Corner radius 0.8 mm for fine surface finish

Precision finishing with cermet for consistent surface quality

The uncoated cermet grade NS9530 is optimised for finish turning, combining ceramic hardness with metal toughness to maintain a sharp cutting edge and resist abrasive wear. This composition reduces flank wear during continuous light cuts, resulting in low cutting forces and a high surface finish on steel workpieces. The result is fewer rework cycles and more predictable part quality in production runs.

Robust ISO geometry and flexible mounting for economical use

The insert follows the ISO‑standard CNMG form, listed as CNMG120408, with a rhombic geometry and an included angle of 80°. The 12 mm size and 4.76 mm thickness offer stability in a wide range of external and internal holders. The corner radius 0.8 mm provides a compromise between edge strength and surface quality, while the double-sided chipbreaker doubles the number of usable edges, reducing tooling cost per part. A cylindrical hole enables secure clamping with standard screws and seats.

Application guidance and process security for turning operations

Designed primarily for finishing on steel, the grade performs best with continuous cuts and small depths, where the uncoated cutting edge gives clean part surfaces and predictable tool life. Select the chipbreaker and grade according to workpiece material and machine stability to avoid chatter and extend effective edge life. As a Tungaloy production item, the insert benefits from controlled manufacturing tolerances, which supports repeatable results and simplifies holder selection when compatibility is checked by form, relief angle, tolerance class, mounting and thickness.

For finishing tasks where surface quality and repeatability matter, ask Metav Werkzeuge about the Tungaloy CNMG 120408 NS9530 (SKU TUN6998131) for tailored holder recommendations — call +49 2822 7131930 or email info@metav-werkzeuge.com

Technical Data

• Article number: 6998131
• Manufacturer SKU: TUN6998131
• SKU: 6998131-Tungaloy
• Model series: ISO turning inserts

Dimensions / Core data

• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Included angle: 80°
• Relief angle: 0°
• Double‑sided: Yes

Design / Special features

• ISO designation: CNMG120408
• Grade: NS9530 (uncoated cermet)
• Material: cemented carbide
• Shape: rhombic
• Hole: with cylindrical hole
• Chipbreaker: double‑sided
• Application: Turning

FAQ

What materials is this insert intended for?
The CNMG 120408 NS9530 insert is specified as a finishing grade for steel and is best applied in continuous turning operations on steel workpieces.

Is the insert coated?
This Tungaloy insert uses an uncoated NS9530 cermet grade; the lack of coating supports very sharp edges and excellent surface finishes in finishing passes.

How many cutting edges are available per insert?
The double‑sided chipbreaker provides two usable cutting edges per side, effectively offering up to four edges before regrinding or replacement is required, depending on wear and application.

What holder features are necessary for compatibility?
Compatibility depends on form, relief (clearance) angle, tolerance class, mounting method, size and thickness; the CNMG geometry and cylindrical hole match common ISO holders for turning.

Which operations suit this insert best?
This insert is designed for external and internal finishing turns with small depths of cut and continuous cutting conditions to exploit the low cutting forces and sharp edge.

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.