CNMG 120408 NS9530 Wendeplatten - Tungaloy

Benefit from precise finishing, low cutting forces and reliable ISO compatibility to keep turning operations productive and repeatable; order original inserts directly via Metav Werkzeuge or consult our specialists for application matching.

CNMG 120408 NS9530 ISO turning insert for finishing – Tungaloy

The CNMG120408 NS9530 is an ISO rhombic turning insert designed for finishing steel with a sharp cutting edge and low cutting forces.

• ISO rhombic insert CNMG 120408
• Uncoated cermet NS9530 for finishing
• 0.8 mm corner radius for fine surface
• Cylindrical hole, double-sided chipbreaker

Achieve high-quality finishes with lower cutting forces

The uncoated cermet grade NS9530 combines a very sharp cutting edge with reduced adhesion tendency, making it particularly suited for finishing operations in steel. Compared with conventional carbide grades, this material offers improved surface quality at small depths of cut and during continuous feeds. The result is fewer reworks, more stable cycle times and consistent part appearance; the smart choice for shops that prioritise surface integrity and process reliability.

Secure indexing and compatibility across ISO systems

Being an ISO-standard rhombic insert, compatibility with the toolholder depends on insert form, relief angle, tolerance class, clamping method, size and thickness. The 0° relief and the CNMG form ensure straightforward seating in common external holders and boring bars. This repeatable fit reduces setup variation and supports predictable tool life, so machining centres and CNC lathes maintain consistent dimensional results across runs.

Geometry engineered for repeatable performance on the shop floor

The combination of a 0.8 mm corner radius and an 80° included angle provides a balance between edge strength and the ability to produce fine surfaces. A plate thickness of 4.76 mm offers rigidity during light finishing cuts, while the cylindrical hole together with the double-sided chipbreaker secures positive clamping and effective chip control. Proper chip control reduces heat buildup and decreases the risk of built-up edge, supporting uninterrupted production and longer intervals between indexings.

Practical recommendations for material and process selection

This insert is optimised for turning steel in finishing applications with small feed and depth of cut; select the chipbreaker and grade according to workpiece material, operation type and machine stability. The cutting edge geometry and cermet grade deliver low cutting forces and excellent surface roughness in continuous cuts. The substrate is a robust carbide, which together with the uncoated cermet face provides a good compromise between edge acuity and wear resistance for repeatable shop-floor use.

Contact Metav Werkzeuge at info@metav-werkzeuge.com or +49 2822 7131930 to discuss application suitability and to secure original Tungaloy CNMG120408 NS9530 inserts for precision finishing

Technical Data

• Article number: 6998270
• Manufacturer article number: TUN6998270
• Seller SKU: 6998270-Tungaloy
• Model series: ISO turning inserts
• Cutting material: uncoated cermet NS9530

Dimensions & measurable data

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

Design & special features

• Shape: rhombic (CNMG)
• Hole: with cylindrical hole
• Chipbreaker: double-sided
• Substrate: carbide
• Application: turning, finishing steel

FAQ

What operations suit this insert best? This insert is intended for finishing turning operations; the NS9530 cermet grade is optimised for continuous cuts and small depths of cut when machining steel.

Is the CNMG120408 compatible with common ISO holders? Compatibility is determined by insert form, relief angle, tolerance class, clamping and thickness; the CNMG form and 0° relief are standard for many external holders and boring bars.

How does the uncoated cermet affect surface finish? The uncoated NS9530 cermet delivers a very sharp edge and low cutting forces, which improves surface quality and reduces the need for secondary finishing.

Does the insert include features for chip control? Yes, the CNMG120408 is supplied with a double-sided chipbreaker and a cylindrical hole to aid clamping and manage chip flow during finishing cuts.

Which materials are recommended for this grade? The grade is designed primarily for steel finishing applications; choose chipbreaker and processing parameters based on workpiece stability and the desired surface finish.

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.