TNMG 220408 T9235 Wendeplatten - Tungaloy

Take advantage of the CVD-coated T9235 grade combined with a robust 0.8 mm corner radius and ISO compatibility to secure consistent cutting performance in unstable turning conditions; order the insert directly via Metav Werkzeuge or consult the technical team for application support.

TNMG220408 T9235 TNMG turning insert – CVD-coated carbide, 60° triangular, Tungaloy

TNMG220408 T9235 is an ISO triangular turning insert designed for external and internal turning applications, optimised for steel machining under interrupted or unstable cutting conditions.

• ISO triangular insert TNMG 60° with 0.8 mm corner radius
• CVD-coated carbide grade T9235 for steel machining
• Double-sided chipbreaker for interrupted cuts
• Cylindrical-hole design, 4.76 mm plate thickness

Reduce downtime with predictable tool life

The combination of a CVD-coated surface and the T9235 grade of carbide provides a wear-resistant cutting edge that suits applications where cutting speeds are moderate and interruptions occur frequently. The coating extends edge life by improving thermal stability and oxidation resistance, resulting in predictable tool life and fewer unscheduled tool changes. For workshops focused on steady throughput, this grade reduces the number of insert replacements and supports more consistent batch processing when machining steel components.

Reliable machining where chip control matters

A double-sided chipbreaker combined with the insert’s triangular geometry provides effective chip formation and evacuation in disrupted cuts. The 60° triangular configuration with a 0.8 mm corner radius gives a robust cutting edge for light to medium roughing passes and intermittent cuts, improving surface quality in challenging conditions. The cylindrical hole and standard fixation ensure secure clamping and repeatable seating, which together help to maintain stable cutting forces and reduce vibration-related issues.

Fast integration into ISO toolholder systems

Built to the ISO standard, the insert integrates with compatible external holders and boring bars with defined fixation, tolerance class and form requirements. The 4.76 mm thickness and 0° relief angle are common dimensional parameters that simplify stock management and replacement procedures. Clear standardisation means quicker changeovers, lower set-up time and straightforward inventory control across different tool types while maintaining holder compatibility for established turning systems.

Select the right grade for consistent process stability

The insert is specifically developed for operators who need process stability rather than maximum cutting speed; its properties favour roughing operations and interrupted engagement where edge robustness is essential, while still delivering acceptable finish for certain semi-finish passes. When planning a machining strategy, combine this grade with a matching chipbreaker and adjust feed rates to balance edge life and cycle time. For specific workpiece materials and operational parameters, Metav Werkzeuge’s advisors can help refine the selection and cutting data for optimal results.

Contact Metav Werkzeuge for tailored application advice on Tungaloy turning inserts or to confirm stock and delivery options via eMail or phone

Technical data

• Article number: 6786049
• Manufacturer SKU: TUN6786049
• Material: Hartmetall
• Model series: ISO-Drehwendeschneidplatten

Core data

• Insert designation: TNMG220408
• Grade / coating: T9235 (CVD-coated)
• Corner radius: 0.8 mm
• Plate thickness: 4.76 mm
• Geometry angle: 60°
• Relief angle: 0°

Special features

• Double-sided chipbreaker
• Cylindrical hole
• Triangular plate form
• Suitable for external and internal turning
• Optimised for interrupted cuts and unstable conditions

FAQ

What materials is this insert suitable for?
The TNMG220408 T9235 insert from Tungaloy is formulated primarily for machining steel and performs reliably under interrupted cutting when the T9235 grade is selected for robustness.

How does the T9235 grade differ from other grades?
Tungaloy’s T9235 is a CVD-coated carbide grade designed for toughness and long edge life at lower cutting speeds, making it especially useful for unstable conditions and interrupted cuts with the TNMG geometry (SKU TUN6786049).

Can this insert be used for internal turning as well as external turning?
Yes, the ISO-compliant TNMG220408 geometry and cylindrical-hole fixation permit use in both external holders and appropriate boring bars for internal turning operations.

What is the recommended use for the 0.8 mm corner radius?
A 0.8 mm corner radius provides a durable cutting edge suited to light-to-medium roughing and situations where strength at the corner is important to resist chipping during interrupted engagement.

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.