TNMG 220412 T9235 Wendeplatten - Tungaloy

Benefit from the CVD-coated carbide (T9235) and the 60° triangular TNMG form with a 1.2 mm corner radius for reliable turning performance in steel, including interrupted cuts and unstable conditions; order directly through Metav Werkzeuge or consult our specialists for tailored advice.

TNMG 220412 T9235 — TNMG turning insert, CVD-coated carbide, 60° (Tungaloy)

The TNMG 220412 T9235 is a CVD-coated carbide turning insert intended for external and internal turning of steel, engineered to cope with interrupted cuts and less stable machining conditions.

• CVD-coated carbide T9235 grade
• 60° triangular TNMG geometry
• 1.2 mm corner radius
• Double-sided chipbreaker
• With cylindrical hole for secure clamping

Reliable cutting under interrupted and unstable conditions

The CVD-coated carbide grade T9235 is formulated for toughness rather than maximum speed, which yields consistent tool life when machining steel under challenging conditions. A CVD (chemical vapour deposition) coating provides a hard, wear-resistant surface while the carbide substrate maintains edge strength; together these features reduce flank wear and help preserve dimensional accuracy over longer periods. This combination is particularly beneficial when cuts are interrupted or when vibration and table dynamics reduce process stability, ensuring predictable removal rates and fewer unexpected stoppages.

ISO compatibility and what ensures secure clamping

The insert follows the ISO TNMG 220412 form and is supplied with a cylindrical hole and standard dimensions (22 mm across the inscribed circle, 4.76 mm thickness) for straightforward integration into ISO holders. Compatibility with a chosen toolholder is determined by the insert form, clearance angle, tolerance class, clamping method, size and thickness; matching these parameters avoids poor seat contact or misalignment. The double-sided chipbreaker allows use of both cutting edges, and the 0° clearance angle suits a broad range of external and internal turning setups, simplifying tool inventory and setup procedures.

Productivity gains, chip control and surface quality

A 1.2 mm corner radius offers a balance between edge robustness and surface finish—supporting moderate depths of cut while improving edge life compared with finer radii. The double-sided chipbreaker supports efficient chip control for typical steel machining, reducing the risk of entangling chips and improving operator safety. For workshop managers, these characteristics translate into fewer insert changes, reduced setup time and steadier component quality; for operators, they mean less manual intervention and better repeatability across batches. If there is uncertainty about the best grade, chipbreaker style or radius for a specific task, Metav Werkzeuge can provide application guidance and machining parameter recommendations.

Discuss your application with Metav Werkzeuge to select the optimal Tungaloy turning insert and secure consistent machining results for your production process

Technical data

• Article number: 6785899
• Manufacturer SKU: TUN6785899
• SKU: 6785899-Tungaloy
• Model series: ISO turning inserts
• Product designation: TNMG220412

Facts

• Geometry: TNMG (triangular, 60°)
• Angle: 60°
• Corner radius: 1.2 mm
• Size: 22 mm
• Thickness: 4.76 mm
• Clearance angle: 0°
• Hole style: cylindrical

Special features

• CVD-coated carbide (T9235)
• Double-sided chipbreaker
• With cylindrical hole for secure clamping
• Triangular plate form, indexable insert
• Suited for external and internal turning
• Designed for steel and interrupted cuts
• ISO-standard dimensions and compatibility

FAQ

What materials is this insert designed for?
The TNMG 220412 T9235 insert is intended primarily for machining steel; the T9235 grade delivers toughness and stable performance in interrupted cuts and less stable conditions.

How is compatibility with toolholders ensured?
Compatibility depends on the insert form, clearance angle, tolerance class, clamping method, size and thickness; the TNMG 220412 follows ISO dimensions and fits matching ISO TNMG holders when these parameters align.

What does the T9235 grade indicate?
T9235 denotes a CVD-coated carbide grade selected for toughness and reliable edge life at moderate cutting speeds, making it suitable for unstable or interrupted turning applications.

Why choose a 1.2 mm corner radius?
A 1.2 mm corner radius provides a compromise between edge strength and surface finish—improving durability for medium-depth cuts while maintaining acceptable surface quality.

Can both cutting edges be used?
Yes, the insert features a double-sided chipbreaker, enabling indexing to a fresh edge and extending usable life before replacement.

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.