CNMG 120408 T9235 Wendeplatten - Tungaloy

Take advantage of the combination of a CVD-coated carbide grade engineered for steel and the ISO-standard CNMG120408 geometry to improve process robustness and tool life; order directly via Metav Werkzeuge or consult the technical advisers for application support.

CNMG 120408 T9235 — CNMG turning insert for turning by Tungaloy

CNMG 120408 T9235 is an ISO-compatible turning insert intended for external and internal turning, offering a tough CVD-coated carbide grade for unstable conditions and interrupted cuts.

• CVD-coated carbide T9235 grade
• 80° rhombic geometry, 0.8 mm nose radius
• Double-sided insert with cylindrical hole
• Suited for unstable and interrupted cuts

Reliable performance for ISO turning systems

The CNMG120408 T9235 insert is designed to fit ISO-standard tooling systems, which ensures straightforward interchangeability across compatible holders and boring bars. The ISO 120408 designation and rhombic form provide a well-understood geometry that simplifies tool selection and setup. As a result, machine shops benefit from predictable seating and repeatable clamping: the matching of form, relief angle, tolerance class, clamping method, size and thickness reduces setup time and supports consistent part quality. This compatibility is particularly valuable for production environments requiring rapid indexability and reliable tool changeover.

Improved stability in interrupted and unstable cuts

The T9235 grade is a CVD-coated carbide developed as a tough, damage-resistant option for machining steel at lower cutting speeds and under unstable conditions. Its formulation prioritises edge strength and resistance to chipping, which translates into fewer premature indexings and reduced scrap rates when facing interrupted cuts or light vibrations. Selecting this grade for such applications supports longer effective tool life and a steadier process window, helping to lower total machining costs through improved uptime and less frequent insert replacement.

Controlled chip formation and geometry advantages

The insert’s double-sided layout combined with an integrated chipbreaker assists efficient chip control, reducing the risk of chip entanglement and improving surface consistency. The rhombic 80° geometry offers a robust cutting edge suited to versatile turning tasks, while the 0.8 mm nose radius balances strength with surface finish capability for semi-finish operations. The plate’s 4.76 mm thickness contributes to rigidity at the cutting edge, supporting dimensional accuracy even when cutting parameters are conservative due to workpiece instability.

Practical integration for workshop productivity

Installation is straightforward within an ISO insert system: the indexable plate requires a compatible external holder or boring bar, the appropriate shim or clamp set, and the correct replacement screws. The cylindrical hole aids secure locating in many common clamping arrangements. By choosing this insert, workshops gain a technically clear component that integrates into existing tool families, easing stock management and reducing the need to qualify multiple, disparate tool types. The combination of predictable geometry and a tough coating supports repeatable results across series production and one-off jobs alike.

Contact Metav Werkzeuge for application advice or a tailored quotation for the Tungaloy CNMG120408 T9235 turning insert; technical advisers are available to verify suitability for specific steels and machining conditions.

Technical data

• Article number: 6785793
• Manufacturer SKU: TUN6785793
• SKU: 6785793-Tungaloy
• Brand: Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Designation: CNMG120408
• Material: cemented carbide

Core specifications

• Size: 12 mm
• Plate thickness: 4.76 mm
• Nose radius: 0.8 mm
• Clearance angle: 0°
• Included angle: 80°
• Hole: with cylindrical hole

Special features

• CVD-coated carbide T9235 grade
• Tough grade optimised for steel, low cutting speeds and interrupted cuts
• Double-sided chipbreaker
• Rhombic plate shape (CNMG)
• ISO-compatible turning insert for external and internal turning
• System requirement: matching holder/boring bar, shim/clip and screws

FAQ

Is this insert suitable for machining steel?
Yes. The T9235 CVD-coated carbide grade in the CNMG120408 insert is formulated as a tough grade for machining steel, especially at lower cutting speeds and in interrupted or unstable cutting conditions.

What are the key geometry details of the insert?
The insert is a CNMG 120408 profile with an 80° rhombic angle, a 0.8 mm nose radius and a plate thickness of 4.76 mm; it features a cylindrical hole for secure clamping.

Which toolholders are compatible with this insert?
Compatibility requires ISO-compatible external holders or boring bars that match the insert form, relief angle, tolerance class, clamping method, size and thickness; the insert is designed for standard ISO turning systems.

How does the chip control perform during turning?
The insert’s double-sided chipbreaker supports controlled chip formation, helping to reduce chip entanglement and improve surface consistency in turning operations.

Can this insert be used for finishing?
The 0.8 mm nose radius and rhombic geometry offer a balance between edge strength and surface finish; while optimised for stability and interrupted cuts, the insert can deliver acceptable finishing results depending on parameters and holder rigidity.

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.