CNMG 120408 NS9530 Wendeplatten - Tungaloy

The combination of uncoated cermet NS9530 and the 80° CNMG profile with a 0.8 mm nose radius delivers low cutting forces and excellent surface finish for finishing turns. Robust chip control from the double‑sided chipbreaker and ISO compatibility ensure reliable, productive machining. Order the insert directly via Metav Werkzeuge or consult our advisors for tailored selection support.

CNMG 120408 NS9530 Tungaloy — ISO turning insert for finishing

A CNMG120408 NS9530 indexable turning insert optimised for fine finishing of steel components in external and internal turning applications

• ISO-compliant CNMG insert
• Uncoated cermet NS9530 for fine finishing
• Double-sided chipbreaker for continuous cuts
• 80° rhombic form with 0.8 mm nose radius

Precision finishing with lowered cutting forces

The uncoated cermet NS9530 grade is designed as a finishing allotment for steel, providing a sharp cutting edge and low cutting forces that reduce vibration and improve stability during light cuts. This results in improved surface quality and consistent part tolerance in continuous turning operations. The chemistry and microstructure of the cermet promote a fine edge and good wear resistance under finishing conditions, so the finishing pass requires fewer reworks and produces an even, repeatable surface texture.

ISO compatibility and secure clamping for consistent results

Built to ISO standards, the insert’s form and dimensions guarantee predictable compatibility with standard CNMG housings and external holders. Compatibility is determined by form, clearance angle, tolerance class, attachment, size and thickness; the CNMG 120408 designation and the rhombic geometry simplify selection of a matching holder and clamping set. The insert’s cylindrical hole and standard fixing interface support secure mounting, minimising movement at the cutting zone and maintaining cutting geometry over longer cycles.

Productive chip control and process reliability

The double-sided chipbreaker on this indexable insert supports continuous cutting and reliable chip formation when working at finishing feeds and shallow depths of cut. Stable chip control reduces the risk of tangling and improves tool-life predictability, enabling higher effective productivity in serial machining. Combined with the grade’s edge retention, this results in fewer indexings and a stable production flow, particularly for medium- to high-volume runs where repeatability and surface integrity are priorities.

Practical guidance for application and selection

For outer and inner turning of steel components, select the NS9530 grade and the double-sided chipbreaker when aiming for top surface finish and minimal cutting forces. The 0.8 mm nose radius suits fine finishing passes, offering a compromise between edge strength and surface finish. Choose the appropriate holder and clamping hardware that match the ISO form and the 4.76 mm plate thickness to ensure full support of the cutting edge and to prevent chatter in less rigid set-ups. For varying materials or heavier cuts, consider a different grade or chipbreaker designed for increased toughness.

Contact Metav Werkzeuge for a tailored recommendation on the Tungaloy CNMG 120408 NS9530 insert (SKU 6998143-Tungaloy) and to confirm holder compatibility for specific turning applications

Technical data

• Article number: 6998143
• Manufacturer SKU: TUN6998143
• SKU: 6998143-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Type designation: CNMG120408

Facts

• Size: 12
• Thickness: 4.76 mm
• Clearance angle: 0°
• Included angle: 80°
• Nose radius: 0.8 mm
• Hole style: cylindrical hole

Special features

• Uncoated cermet NS9530
• Rhombic plate form
• Double-sided chipbreaker
• Designed for external and internal turning
• Suitable for continuous cuts and fine finishing
• ISO designation CNMG 120408

FAQ

What machining tasks is this insert best suited for?
The CNMG120408 NS9530 Tungaloy insert is intended for finishing in turning operations on steel; its uncoated cermet composition and fine edge provide low cutting forces and high surface quality for external and internal turning.

How is compatibility with holders determined?
Compatibility depends on the ISO form, clearance angle, tolerance class, attachment method, plate size and thickness; the CNMG120408 designation and the 4.76 mm thickness should be matched to the corresponding holder and clamping set.

Does this insert offer reliable chip control?
Yes, the double-sided chipbreaker on this indexable insert provides consistent chip formation during continuous cuts, improving process reliability and reducing rework.

Is the grade coated or uncoated?
The NS9530 grade is an uncoated cermet, specifically engineered for fine finishing of steel where a sharp cutting edge and low cutting force are required.

How many usable cutting edges are available per insert?
With a double-sided configuration, the insert provides multiple indexable edges; the exact number of edges depends on the insert geometry and the chosen indexing strategy, documented for CNMG-style plates.

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.