CNMG 120408 NS9530 Wendeplatten - Tungaloy

Combining the 80° rhombic geometry with the NS9530 uncoated cermet grade, this insert offers fine finishing with low cutting forces and stable edge integrity for continuous turning operations. Order the CNMG120408 directly via Metav Werkzeuge or contact our advisors for selection guidance.

CNMG 120408 NS9530 Tungaloy — Rhombic ISO turning insert for fine finishing

CNMG120408 NS9530 Tungaloy is a rhombic ISO indexable insert designed for external and internal turning, optimised for finishing steel with small depths of cut.

• ISO rhombic insert 80° geometry
• Uncoated cermet NS9530 for fine finishing
• Double-sided chipbreaker, cylindrical hole
• Sharp cutting edge for low cutting forces
• Compatible with ISO turning toolholders

High-precision finishing with low cutting forces

The combination of the NS9530 uncoated cermet and the sharp cutting edge delivers a consistently high surface quality on steel in finishing operations. The 80° geometry and small corner radius reduce radial loading, which helps to keep cutting forces low and the machining process stable. For routines with continuous cuts and limited depths of cut, this configuration supports reliable chip formation and reduces the need for subsequent dressing or rework.

Clear compatibility and safe integration into existing tool systems

Designed as part of an ISO turning insert series, the plate fits holders when form, clearance, tolerance class, fastening, size and thickness match. The inscribed circle 12 mm and thickness 4.76 mm are standard dimensions that simplify replacement and holder matching. The insert is supplied with a cylindrical centre hole, enabling secure clamping in most ISO-compatible clamping systems and reducing set-up time on the machine.

Efficient process behaviour and economical handling

The double-sided chipbreaker allows reversal to a fresh cutting edge, extending service life per insert and improving cost-efficiency in production. As an indexable insert, the component minimises downtime for tool changes and supports predictable tool-change planning. Choosing a finishing grade such as NS9530 can shorten cycle times for consecutive finishing passes, while maintaining the desired surface integrity and dimensional tolerance.

Material choice and recommended application scope

The uncoated cermet grade NS9530 is selected specifically for finishing applications on steel where a sharp edge and low cutting forces are required. The grade is suited to continuous cutting with small feed and depth parameters, providing improved surface finish over many general-purpose grades. For less continuous, interrupted cuts or heavy roughing, alternative grades or geometries should be considered to match stability and wear demands.

For precision finishing with the NS9530 grade, contact Metav Werkzeuge for ordering or technical advice: info@metav-werkzeuge.com | +49 2822 7131930

Technical Data

• Article number: 6998145
• Manufacturer: Tungaloy
• SKU: 6998145-Tungaloy
• Manufacturer SKU: TUN6998145
• ISO designation: CNMG120408

Facts

• Inscribed circle: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Rake angle: 0°
• Cutting edge angle: 80°

Special features

• Uncoated cermet grade NS9530
• Double-sided chipbreaker
• Cylindrical centre hole
• Rhombic plate form
• For external and internal turning
• ISO-series indexable insert

FAQ

Which materials are best handled with this insert?
The CNMG120408 NS9530 Tungaloy insert is optimised for finishing operations on steel, delivering low cutting forces and improved surface quality when used with continuous cuts and small depths of cut.

Is the insert coated?
The CNMG120408 is supplied as an uncoated cermet in grade NS9530, designed to provide a sharp cutting edge and fine surface finish.

How is compatibility with toolholders ensured?
Compatibility depends on matching the insert form, clearance (rake) angle, tolerance class, fastening method, size (inscribed circle 12 mm) and thickness (4.76 mm); CNMG120408 conforms to ISO standards for indexable turning inserts.

Can the insert be reversed or indexed?
Yes, the CNMG120408 features a double-sided chipbreaker, allowing reversal to a fresh cutting edge to extend usable life per insert.

What applications suit this insert best?
The insert is intended for external and internal turning as a finishing grade, particularly where a sharp edge and high surface quality are priorities under continuous cutting conditions.

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.