TNMG 220408 T9225 Wendeplatten - Tungaloy

Benefit from the combination of CVD-coated carbide T9225, a 0.8 mm corner radius and a sturdy 60° triangular form for resilient, versatile turning performance; order the insert directly via Metav Werkzeuge or contact our consultants for application advice.

TNMG 220408 T9225 Turning insert (Tungaloy) — 60° triangular, CVD-coated

The TNMG220408 T9225 is a triangular indexable insert engineered for medium to heavy steel turning, offering robust edge stability and compatibility with standard ISO holders.

• CVD-coated carbide T9225 grade
• Robust for medium to heavy steel
• 60° triangular form with cylindrical hole
• 0.8 mm corner radius for versatility

Consistent metal removal and reliable process results

The insert delivers efficient material removal thanks to its CVD-coated carbide grade T9225, which balances wear resistance with toughness for varying engagement conditions. This combination makes the component particularly suitable for medium to heavy steel turning where interrupted cuts or variable chip loads occur. The design focuses on process stability and predictable tool life, helping to reduce unplanned stoppages and support continuous production runs. The robust geometry aids in maintaining surface quality while enabling longer cutting intervals compared with uncoated or softer grades.

Straightforward mounting and proven compatibility

Compatibility with holders is determined by the insert’s form, relief angle, tolerance class, fastening and thickness. The triangular 60° shape and the cylindrical hole permit secure clamping in a wide range of ISO-compatible external holders and boring bars. With a thickness of 4.76 mm and a nominal size of 22 mm, the insert integrates into common tool systems; using the correct shim and clamping kit ensures repeatable positioning and cutting accuracy. This clarity in mechanical fit reduces setup time and supports reproducible results in serial production.

Material and coating advantages explained

The cutting material is carbide, coated by a CVD process to form the T9225 grade. CVD coatings produce a hard, wear-resistant layer that adheres well to the substrate while retaining edge toughness. For everyday workshop use this means the insert resists abrasive wear and thermal degradation better than uncoated equivalents, yet keeps enough toughness to withstand slight interruptions in the cut. When machining steels, a universal grade like T9225 minimises the need for multiple specialised grades, simplifying tool inventory and selection.

Practical guidance on chip control and edge radius

The insert is supplied with a 0.8 mm corner radius, a compromise between robustness and surface finish capability. A larger radius increases edge strength and is advantageous for stable cuts and roughing; the chosen radius here also supports acceptable finish levels on general turning operations. The double-sided chipbreaker geometry provides repeatable chip formation across both edges, extending usable life per index and lowering tooling costs per part. Select the chipbreaker and cutting parameters in line with workpiece rigidity and cut depth to achieve the best trade-off between productivity and finish.

Contact Metav Werkzeuge for detailed application advice on Tungaloy inserts or request a recommendation tailored to specific turning conditions — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 6780874

• Manufacturer SKU: TUN6780874

• Model series: ISO turning indexable inserts

• ISO designation: TNMG220408

• Grade: T9225 (CVD-coated)

Facts

• Insert form: triangular (60°)

• Insert size: 22 mm

• Thickness: 4.76 mm

• Corner radius: 0.8 mm

• Relief angle: 0°

• Hole: with cylindrical hole

Special features

• Material: carbide

• Chipbreaker: double-sided

• Typical application: external and internal turning

• System composition: insert, compatible external holder or boring bar, shim/clamp set, replacement screws

FAQ

How is holder compatibility determined for this insert?
Compatibility depends on form, relief angle, tolerance class, fastening method, size and thickness; the TNMG220408 insert requires an ISO-compatible triangular pocket and appropriate clamping components.

Which materials are suitable for machining with this grade?
The T9225 grade is a CVD-coated carbide designed as a robust universal grade for medium to heavy steel machining where variable engagement or slightly interrupted cuts demand additional toughness.

What are the key dimensional specifications to check before fitting?
Check the 22 mm size, 4.76 mm thickness, 0.8 mm corner radius and the cylindrical hole to ensure correct seating and clamping in the chosen holder.

What advantage does the double-sided chipbreaker provide?
A double-sided chipbreaker offers two usable cutting edges per side with consistent chip control, improving economy per index and maintaining stable metal removal across multiple re-indexes.

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.