CNMG 120408 GT9530 Wendeplatten - Tungaloy

Take advantage of the combination of GT9530 coated cermet durability, ISO CNMG compatibility and a 0.8 mm nose radius for consistent finishing results; order the insert directly via Metav Werkzeuge or consult the technical advisers for application-specific recommendations.

CNMG120408 GT9530 Tungaloy — CNMG 120408 coated cermet indexable insert for turning, 0.8 mm nose radius, 80°

CNMG120408 GT9530 is an ISO CNMG-format indexable insert designed for finishing and light universal turning of steel under stable cutting conditions

• ISO CNMG format, rhombic insert form
• Coated cermet grade GT9530 for long life
• 0.8 mm nose radius for improved surface finish
• Double-sided chipbreaker for bidirectional use

Consistent surface quality and predictable results

The GT9530 grade is a coated cermet developed for wear resistance in finishing applications, delivering a reliable combination of tool life and surface quality. With a 0.8 mm nose radius and the ISO CNMG geometry, the insert produces fine contact conditions that reduce vibration and support stable cutting engagement. The result is a measurable improvement in part finish and repeatability during batch production, particularly when machining steel with controlled setups and steady feeds.

Designed for straightforward integration into production

Compatibility with holders depends on form, clearance angle and tolerance class; the ISO CNMG standardisation ensures the insert fits a wide range of external holders and boring bars. The insert’s rhombic shape, 12 mm size and 4.76 mm thickness match common fixture systems, while the cylindrical hole provides secure clamping. This standard conformity speeds up tool changeover and reduces fixture validation time, enabling smoother process planning and lower downtime between operations.

Durable chip control and economical machining

A double-sided chipbreaker and the coated cermet substrate combine to control chip formation in finishing and light general-purpose turning, reducing rework and operator intervention. The wear characteristics of the grade extend the service interval in stable cutting conditions, which translates into fewer insert changes and reduced tooling costs per component. Where surface finish and predictable life are priorities, the combination of geometry and material supports efficient, quality-focused production.

Contact Metav Werkzeuge for tailored advice on the CNMG120408 GT9530 insert, ordering options and compatibility checks; email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6998062
• Manufacturer SKU: TUN6998062
• Model series: ISO indexable turning inserts
• Designation: CNMG120408 GT9530
• Shape: rhombic
• Size: 12 mm
• Thickness: 4.76 mm
• Hole: with cylindrical hole

Facts

• Nose radius: 0.8 mm
• Approach/lead angle: 80°
• Clearance angle: 0°
• Chipbreaker: double-sided
• Manufacturer item number: 6998062

Special features

• Grade/coating: GT9530
• Cutting material type: coated cermet
• Intended application: turning (external and internal)
• Typical use: finishing to light universal turning of steel
• Compatibility criteria: form, clearance angle, tolerance class, fixation, size and thickness
• System setup: ISO insert + matching external holder or boring bar + shim/fastening set and replacement screw

FAQ

What steels is the GT9530 grade best suited for?
The GT9530-coated cermet is optimised for machining steel in finishing and light universal turning operations, offering improved surface finish and wear resistance under stable cutting conditions.

How does the CNMG120408 geometry affect surface finish?
The CNMG120408 form with a 0.8 mm nose radius produces a smaller contact area and smoother cutting action, which contributes to a finer surface finish and reduced likelihood of chatter when machining with appropriate rigidity.

Is the insert reversible and how many cutting edges are available?
The CNMG120408 insert features a double-sided chipbreaker, providing two usable cutting edges per indexable position and enabling bidirectional clamping for extended life.

What should be checked for holder compatibility?
Compatibility is determined by insert form, clearance angle, tolerance class, fixation type, size and thickness; ensure the holder accepts ISO CNMG inserts with a cylindrical hole and 4.76 mm thickness.

Which components are required to complete the system for turning?
A complete setup typically includes the ISO insert, a compatible external holder or boring bar, a shim/clamping set and the correct replacement screw for secure fastening.

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.