CNMG 120408 GT9530 Wendeplatten - Tungaloy

Take advantage of the combination of long tool life, precise ISO compatibility and consistent surface quality provided by the GT9530 grade; order directly via Metav Werkzeuge or consult the sales team for application-specific advice.

CNMG120408 GT9530 indexable insert for turning — Tungaloy

CNMG120408 GT9530 is an ISO‑standard indexable turning insert, designed for external and internal turning with a focus on finishing operations and extended tool life.

• CNMG120408 ISO insert for turning
• GT9530 coated cermet for fine finishing
• Rhombic shape, 80° cutting angle, 0° relief
• Double-sided chipbreaker, cylindrical hole

High‑quality grade for consistent finishing and durability

The GT9530 coated cermet is engineered as a wear‑resistant finishing to light‑universal grade, delivering improved surface results and longer tool life under stable cutting conditions. Cermet combines a ceramic matrix with metallic binders to maintain edge stability at low to moderate cutting temperatures, making the grade particularly effective for turning Stahl where surface integrity is critical. The result is fewer part reworks and more predictable process windows for serial production.

Geometry and chip control that improve productivity

The rhombic geometry with an 80° cutting angle and a 0° relief provides a balanced cutting action that supports both external and internal turning. The R0.8 corner radius helps achieve a fine surface finish while still allowing light stock removal; the double‑sided chipbreaker supports reliable chip formation and evacuation. These design elements together reduce tool vibration and enable stable cutting when paired with a suitably rigid toolholder, contributing directly to shorter cycle times and consistent part quality.

System compatibility and straightforward handling

As an ISO 120408 insert, compatibility with clamping systems is determined by form, relief angle, tolerance class, fastening, size and thickness; the plate is supplied with a cylindrical hole for secure fastening. The plate thickness of 4.76 mm and the ISO geometry simplify selection of matching external holders or boring bars, enabling quick index changes and minimal setup time. Selecting the correct chipbreaker and grade for the workpiece material and machining stability ensures the insert performs optimally in a production environment.

For machining tasks that demand improved surface finish and repeatable tool life, contact Metav Werkzeuge for tailored recommendations on the Tungaloy CNMG120408 GT9530 and compatible holders

Technical data

• Article number: 6998064
• Manufacturer SKU: TUN6998064
• SKU: 6998064-Tungaloy
• Item name: CNMG120408 GT9530 Tungaloy-Wendeplatte
• Manufacturer: Tungaloy
• Material: Hartmetall
• Model series: ISO-Drehwendeschneidplatten

Core data

• Plate size: 12 mm
• Corner radius: 0.8 mm
• Plate thickness: 4.76 mm
• Cutting angle: 80°
• Relief angle: 0°

Special features

• Coated cermet grade GT9530
• Double-sided chipbreaker
• Rhombic plate shape
• Cylindrical hole for fastening
• ISO designation CNMG120408
• Application: Turning

FAQ

What materials is this insert suitable for?
The CNMG120408 GT9530 insert is optimised for machining Stahl and performs best in finishing to light‑universal turning operations where good surface quality and extended tool life are required.

Can the insert be indexed and reused?
Yes, the insert is double‑sided and indexable; once one cutting edge is worn, the indexable insert can be rotated to present a fresh edge, maximising the usable life of the plate.

What does the GT9530 grade offer compared with standard grades?
GT9530 is a coated cermet grade designed for enhanced wear resistance and superior surface finish; the composition supports stable edge retention in finishing conditions compared with uncoated or general‑purpose grades.

Which toolholders are compatible with this ISO insert?
Compatibility follows the ISO CNMG geometry: holders and boring bars that accept CNMG120408 inserts and secure them via the cylindrical hole and clamping system are suitable; always match holder rigidity to the intended cutting parameters.

How does the R0.8 corner radius affect the final part?
A 0.8 mm corner radius balances edge strength and surface quality: it helps produce a fine finish while maintaining sufficient edge support for light to moderate depth cuts.

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.