CNMG 120408 T9235 Wendeplatten - Tungaloy

Take advantage of the combination of robust cutting performance, a CVD-coated carbide grade optimised for steels, and easy insert indexing for continuous production. Order the CNMG120408 insert directly via Metav Werkzeuge or request advice from our consultants for toolholder compatibility.

CNMG 120408 T9235 — CNMG turning indexable insert by Tungaloy

A CNMG 120408 T9235 indexable insert for turning, developed for external and internal operations where interrupted or unstable cuts occur

• CVD-coated carbide grade T9235 for steel
• Suitable for unstable and interrupted cuts
• Rhombic CNMG shape with 0.8 mm nose radius
• Double-sided chipbreaker, with cylindrical hole

High cutting reliability and consistent chip control

The CVD-coated carbide composition and the T9235 grade deliver a combination of toughness and wear resistance that suits lower cutting speeds and less stable setups. This results in improved process stability when machining steels with occasional interruptions or variable clamping conditions. The double-sided chipbreaker contributes to reliable chip formation and evacuation, reducing the risk of re-cutting and tool damage. For production planners, this means fewer unexpected stoppages and better reproducibility across batches.

Designed for simple integration and predictable clamping

Compatibility with toolholders depends on form, clearance angle, tolerance class, attachment method, size and thickness; the insert’s ISO CNMG geometry and the presence of a cylindrical locating hole simplify selection of matching cutters and boring bars. The rhombic form and standard dimensions enable predictable seating and secure clamping in common external holders. Where holder choice is uncertain, refer to the insert’s ISO designation CNMG120408 and the provided tolerance dimensions to select a matching external holder or boring bar for safe, repeatable setup.

Material fit and grade explanation for practical use

The CVD coating enhances surface hardness and thermal stability, while the base carbide substrate preserves edge integrity under interrupted cuts. The T9235 grade is formulated as a tougher option for steel machining, favouring edge robustness over maximum cutting speed; this reduces edge chipping in unstable conditions and extends usable life in mixed-production environments. The 0.8 mm nose radius balances acceptable surface finish with strength at the cutting edge, making the insert suitable for general turning tasks that demand reliability rather than ultra-fine finishing.

Contact Metav Werkzeuge for tailored holder recommendations or to order CNMG120408 T9235 inserts; phone +49 2822 7131930 or email info@metav-werkzeuge.com

Technical data

• Article number: 6785819
• SKU: 6785819-Tungaloy
• Manufacturer SKU: TUN6785819

Facts

• ISO designation: CNMG120408
• Size: 12 mm
• Thickness: 4.76 mm
• Nose radius: 0.8 mm
• Clearance angle: 0°
• Insert angle: 80°

Special features

• Grade: T9235
• Coating: CVD-coated carbide
• Shape: rhombic
• Hole: cylindrical
• Chipbreaker: double-sided
• Application: turning
• Model series: ISO indexable inserts for turning

FAQ

What materials is this insert suitable for?
The CNMG120408 T9235 insert is specified for machining steel; the T9235 grade is formulated for tougher performance in steel at lower cutting speeds.

Can the insert be used in interrupted cuts or unstable setups?
Yes. The T9235 grade and the insert’s tougher carbide substrate make it suitable for interrupted cuts and less stable machining conditions.

How is the insert located in the holder?
The insert uses a cylindrical locating hole and standard CNMG geometry to seat in compatible external holders or boring bars; compatibility is determined by form, clearance, tolerance, attachment, size and thickness.

Does the double-sided chipbreaker mean multiple usable edges?
Yes. The double-sided chipbreaker allows indexing to utilise additional cutting edges, improving economy per insert in production.

What surface finish can be expected with a 0.8 mm nose radius?
A 0.8 mm nose radius offers a practical balance between edge strength and finish quality, providing an acceptable surface finish for general turning while maintaining robust edge life.

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.