CNMG 120408 GT9530 Wendeplatten - Tungaloy

Take advantage of the GT9530 coated cermet for improved surface finish and the robust CNMG geometry for stable turning performance; the double-sided design and cylindrical hole simplify indexing and clamping. Order the CNMG120408 GT9530 Tungaloy insert directly via Metav Werkzeuge or ask our consultants if needed.

CNMG120408 GT9530 CNMG turning insert — coated cermet, 0.8 mm radius, Tungaloy

A CNMG120408 GT9530 indexable turning insert intended for finishing to light universal turning of steel where a high-quality surface finish and extended tool life are required.

• Coated cermet grade GT9530 for long tool life
• Rhombic CNMG shape with 80° cutting angle
• 0.8 mm corner radius for improved surface finish
• Double-sided insert with cylindrical centre hole

High-quality finishing with a wear-resistant grade

The coated cermet GT9530 combines the wear resistance of cermet with a tailored coating to provide longer tool life and a consistently fine surface on steel components. In stable machining conditions, this grade reduces flank wear and helps maintain dimensional accuracy over longer production runs. For operations where a smooth part surface is as important as predictable tool life, the cermet chemistry supports slower, controlled wear rather than abrupt failure, contributing to fewer interruptions and more consistent batch quality.

Stable geometry for consistent cutting forces

The rhombic CNMG form with an 80° cutting angle and a 0.8 mm corner radius delivers a balance between edge strength and surface quality. The relatively large corner radius smooths tool engagement and reduces chatter, yielding improved finishes on external and internal profiles. The specified 0° clearance and ISO-standard geometry ensure that cutting forces are transferred predictably through the holder, which simplifies process setting and reduces trial-and-error during tool changeover.

Simple integration into ISO tool systems for efficient production

As an ISO-standard turning insert, compatibility with a suitable holder depends on shape, clearance angle, tolerance class, fastening, size and thickness; the CNMG120408 fits common CNMG holders when these parameters match. The double-sided design with a cylindrical hole allows economical indexing and secure clamping, reducing tooling costs per cutting edge. The cemented carbide substrate provides the mechanical support necessary for finishing, while the chipbreaker and grade selection make this insert appropriate for external and internal turning where controlled chip formation and good surface integrity are required.

For reliable finishing performance with proven Tungaloy quality, contact Metav Werkzeuge to request the CNMG120408 GT9530 insert or to discuss application suitability — eMail: info@metav-werkzeuge.com — Tel: +49 2822 7131930

Technical Data

• Article number: 6998067
• Manufacturer SKU: TUN6998067
• Metav SKU: 6998067-Tungaloy
• Model series: ISO turning indexable inserts
• ISO designation: CNMG120408
• Manufacturer: Tungaloy
• Material: Cemented carbide

Core data

• Corner radius: 0.8 mm
• Plate thickness: 4.76 mm
• Size: 12 mm
• Cutting angle: 80°
• Clearance angle: 0°

Special features

• Coated cermet grade GT9530
• Double-sided with cylindrical hole
• Rhombic plate form CNMG
• Chipbreaker: double-sided
• Application: external and internal turning
• Compatibility determined by form, clearance angle, tolerance class, fastening, size and thickness

FAQ

What materials is this insert suitable for?
The CNMG120408 GT9530 insert is specified for turning steel; the GT9530 cermet grade is optimised for wear resistance and good surface finish on steel workpieces.

How does the insert index and secure in the holder?
This insert features a cylindrical hole and a double-sided design; secure clamping in a compatible CNMG holder allows indexing to a fresh edge when required.

Is the CNMG120408 compatible with all CNMG holders?
Compatibility depends on matching the insert form, clearance angle, tolerance class, fastening method, size and thickness to the holder specifications rather than on the CNMG name alone.

What benefits does the GT9530 coating provide?
The GT9530 coating on the cermet substrate improves resistance to flank wear and supports a consistently fine surface finish, extending productive cutting time under stable conditions.

Which operations are recommended for this insert?
The insert is intended for finishing to light universal turning tasks, suitable for both external and internal profiles where surface quality and predictable tool life are priorities.

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.