CNMG 120408 AH6235 Wendeplatten - Tungaloy

Benefit from the combination of a PVD-coated carbide AH6235 grade, ISO CNMG geometry and a robust 0.8 mm corner radius for reliable performance in interrupted and stainless-steel turning; order the CNMG120408 AH6235 Tungaloy insert directly via Metav Werkzeuge or consult the specialists if required.

CNMG120408 AH6235 Tungaloy indexable turning insert — ISO CNMG 120408, PVD-coated carbide, 0.8 mm corner radius

The CNMG120408 AH6235 is an ISO-standard indexable insert for external and internal turning, engineered to resist chipping in interrupted cuts and to perform well on stainless steels.

• PVD-coated carbide grade AH6235
• Designed for interrupted cuts
• 80° rhombic ISO geometry
• Double-sided chipbreaker, cylindrical hole

Proven cutting performance for interrupted and stainless-steel turning

The combination of a PVD-coated carbide substrate and the AH6235 grade provides a balance of toughness and wear resistance that suits demanding turning operations. The applied coating reduces built-up edge and improves surface finish under adhesive wear conditions, while the tougher substrate resists mechanical shock during interrupted cuts. This results in longer in-process tool life and fewer index changes, supporting predictable cycle times and higher overall productivity on stainless-steel components.

Standardised geometry for flexible holder compatibility

The rhombic 80° ISO geometry with a 0.8 mm corner radius delivers a versatile cutting edge suitable for a wide range of turning tasks. As an ISO-standard insert, it fits compatible holders when form, clearance angle, tolerance class, clamping and size are matched, simplifying tool management in mixed-machine environments. The standardised shape reduces storage complexity and enables quick replacement, which is particularly advantageous in series production and job-shop operations.

Practical benefits: double-sided chipbreaker and secure clamping

The insert is double-sided with a cylindrical hole and is designed to be indexed for efficient use of cutting edges. The integrated chipbreaker geometry helps control chip formation, lowering the risk of entanglement and improving chip evacuation, especially in unstable setups. The modest corner radius strengthens the edge against breakouts while still allowing acceptable surface finish, making the component a pragmatic choice where stability varies between operations.

Application guidance and system considerations

Compatibility with the machine and holder must be ensured; the complete system comprises the insert, a suitable external holder or boring bar, a shim/clamping set and replacement screws. Select the chipbreaker and grade in accordance with workpiece material, feed and the rigidity of the set-up. For less experienced engineers, choosing a slightly tougher grade and a conservative feed reduces the likelihood of edge failure during interrupted cuts and supports consistent quality in batch production.

For tailored recommendations on Tungaloy turning solutions and to order CNMG120408 AH6235 inserts, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 — the Metav Werkzeuge team will advise on the optimal holder and clamping for the intended application.

Technical data

• Article number: 6880206
• Manufacturer SKU: TUN6880206
• SKU: 6880206-Tungaloy
• Model series: ISO turning inserts
• Material: carbide
• Grade: AH6235

Dimensions & core data

• Insert designation: CNMG120408
• ISO code: 120408
• Plate size: 12
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Included angle: 80°
• Clearance angle: 0°

Special features and applications

• Application: turning
• Double-sided chipbreaker
• Cylindrical hole
• PVD-coated carbide
• Suitable for interrupted cuts and stainless steels
• ISO-standard indexable geometry; compatibility depends on holder form, clearance, tolerance, clamping, size and thickness

FAQ

What materials is this insert suited to machine?
The CNMG120408 AH6235 insert is optimised for stainless steels and other materials where adhesion and chipping are a concern; the AH6235 grade is designed to offer improved toughness for interrupted cuts.

What does the CNMG120408 designation indicate?
CNMG120408 denotes an ISO rhombic insert with an 80° included angle and a 0.8 mm corner radius; the geometry is standardised for use in ISO-compatible turning holders.

Is this insert indexable and double-sided?
Yes, the CNMG120408 AH6235 is double-sided and indexed, with a cylindrical hole for secure clamping and efficient use of both cutting edges.

How does the PVD coating help in machining?
The PVD coating on the AH6235 grade reduces adhesion and improves wear resistance during turning, which enhances surface finish and extends edge life under adverse conditions.

Which holders are compatible with this insert?
Compatibility requires a holder that matches the insert form, clearance angle, tolerance class, clamping method, size and thickness; consult holder specifications to ensure a correct fit for the CNMG120408 AH6235.

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.