CNMG 120408 NS9530 Wendeplatten - Tungaloy

Take advantage of the NS9530 finishing grade and the ISO‑compatible CNMG geometry for consistently high surface quality and reliable chip control; the combination of a sharp, uncoated cermet edge and a double‑sided chipbreaker supports productive finishing cycles for steel. Order through Metav Werkzeuge or request tailored advice from our consultants for application‑specific recommendations.

CNMG 120408 NS9530 Tungaloy indexable insert — finishing cermet for turning

CNMG 120408 NS9530 is an ISO‑standard indexable insert for external and internal turning, optimised for finishing steel with a sharp cutting edge and low cutting forces

• ISO CNMG 120408 for broad holder compatibility
• NS9530 uncoated cermet for superior surface finish
• Sharp geometry for low cutting forces
• Double‑sided chipbreaker for consistent chip control
• 0.8 mm nose radius, 80° rhombic configuration

Superior finishing performance with reduced cutting forces

The NS9530 grade is an uncoated cermet developed for finishing applications in steel where a fine surface and low cutting forces are essential. Thanks to the sharp cutting edge and the material’s ability to maintain edge form under continuous cutting, users achieve a noticeably improved surface finish with reduced tendency for built‑up edge. In practical terms, this means fewer rework cycles and more stable part quality when working with small depths of cut and continuous feed. The insert’s geometry contributes directly to process efficiency by lowering power draw and enabling predictable machining results.

Reliable integration into ISO holders and secure clamping

Manufactured to ISO dimensions, the insert is compatible with standard CNMG‑type holders when the holder matches form, clearance angle, tolerance class, fastening and thickness. The 80° rhombic form and the 0° clearance angle ensure a predictable cutting orientation for both external and internal turning tasks. The insert features a cylindrical hole and a double‑sided layout, which supports quick indexing and longer overall tool life per insert. Specifying the matching holder and tightening hardware according to ISO norms reduces setup variability and helps maintain consistent chip position and part finish.

Practical advantages and recommended uses

This grade and insert geometry are particularly suited to finishing operations in steel where small insert engagement and continuous cutting prevail. The double‑sided chipbreaker provides effective chip control across both usable faces, improving machine uptime and operator safety. Owing to the uncoated cermet composition, the cutting edge is exceptionally sharp, which favours low cutting forces and excellent dimensional stability. For less experienced teams, cermet can be described as a ceramic‑metal composite that combines wear resistance with the capacity to produce fine surfaces; when paired with appropriate feeds and speeds it yields repeatable high‑quality results.

For precision finishing applications, contact Metav Werkzeuge for a process consultation or to request a tailored recommendation for the Tungaloy CNMG 120408 NS9530 insert — technical advice is available via Metav Werkzeuge to ensure optimal holder selection and cutting data

Technical data

• Manufacturer article number: 6944534
• SKU: 6944534-Tungaloy
• Manufacturer SKU: TUN6944534
• Model series: ISO‑turning indexable inserts
• Brand: Tungaloy

Core specifications

• ISO designation: 120408
• Insert size: 12 mm
• Thickness: 4.76 mm
• Nose radius: 0.8 mm
• Clearance angle: 0°
• Lead/entry angle: 80°
• Hole: with hole (cylindrical)
• Double‑sided chipbreaker: yes

Design & features

• Grade: NS9530 (uncoated cermet)
• Plate form: rhombic (CNMG)
• Chipbreaker: double‑sided
• Typical application: turning (external and internal)
• Compatibility determined by form, free angle, tolerance class, fastening, size and thickness

FAQ

Which materials is this insert best suited for?
The CNMG 120408 NS9530 insert is formulated as a finishing grade for steel; the uncoated NS9530 cermet provides the surface quality and edge sharpness required for fine finishing of steel components.

Can the insert be used for internal turning as well as external turning?
Yes, the ISO‑standard CNMG geometry and the 80° rhombic form make the insert suitable for both external and internal turning operations when the correct holder is used.

How does the double‑sided chipbreaker affect tool life?
The double‑sided chipbreaker on the CNMG insert allows multiple indexing positions, extending usable edge count and supporting consistent chip control, which contributes to longer effective tool life per insert.

What holder characteristics must be matched for correct compatibility?
Compatibility is determined by the insert’s form, clearance angle, tolerance class, fastening method, size and thickness; selecting an ISO‑compliant holder that matches these parameters ensures secure clamping and repeatable performance.

How should cutting data be adapted for best surface finish?
For a high‑quality finish with this cermet grade, use modest depths of cut and steady feeds appropriate for finishing, avoid interrupted cuts where possible, and ensure stable workholding to capitalise on the sharp edge and cermet properties of the 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.