VNMG 120404 T9225 Wendeplatten - Tungaloy

The combination of an ISO‑standard VNMG format, a CVD‑coated carbide T9225 grade and a 0.4 mm corner radius ensures robust performance for medium to heavy steel turning and reliable chip control under interrupted cuts; Order the VNMG120404E-TM T9225 directly via Metav Werkzeuge or ask our consultants if needed

VNMG120404E-TM T9225 indexable insert for turning — CVD-coated carbide, 0.4 mm radius (Tungaloy)

The VNMG120404E-TM T9225 is an ISO‑standard rhombic indexable insert designed for external and internal turning in steel applications, offering a universal combination of toughness and process stability

• ISO‑standard VNMG format for broad compatibility
• CVD‑coated carbide grade T9225 for toughness
• 0.4 mm corner radius for versatile surface finishes
• 35° lead angle with 0° clearance angle

Predictable fit and system compatibility for uninterrupted production

The ISO VNMG geometry guarantees a standardised interface with suitable holders when form, clearance angle, tolerance class, fastening and plate thickness match. This standardisation reduces set‑up time and the need for special adapters, supporting a smooth production flow. Compatibility is determined by measurable parameters — such as plate size, thickness and fastening — so selecting the correct holder and clamping set avoids unexpected run‑out and ensures repeatable positioning during turning operations.

Robust coating and grade for variable and interrupted cuts

The CVD‑coated carbide structure of the T9225 grade combines a wear‑resistant surface with sufficient substrate toughness, making it suitable for medium to heavy steel machining where changing engagement or light interruptions occur. The coating improves thermal stability and abrasion resistance, while the substrate maintains edge integrity under shock loads. This combination translates into longer edge life, fewer tool changes and improved uptime on machining centres and lathes.

Geometry that balances finish and productivity

A 0.4 mm corner radius provides a compromise between a fine surface finish and adequate edge strength for heavier cuts. The rhombic form with a 35° approach yields a favourable cutting direction for general turning, while the 0° clearance angle is typical for inserts of this style and affects the contact geometry with the workpiece. The insert’s cylindrical hole facilitates secure indexing on the clamping pad; the 4.76 mm plate thickness contributes to rigidity and vibration resistance, helping to maintain consistent surface quality even at higher feeds.

Practical system assembly and application guidance

The insert forms one part of a simple system: ISO insert, compatible outer holder or boring bar, a matching underlay/clamping set and replacement screws. Selecting the correct chipbreaker TM and grade for the workpiece ensures effective chip control and process reliability. For workshops aiming to increase productivity, this insert offers a pragmatic balance of wear resistance and toughness, reducing downtime while maintaining the flexibility to handle varying batch and mixed‑material jobs. For further tool selection advice, consultation can be arranged to match holder geometry and process parameters to the application.

Contact Metav Werkzeuge to discuss Tungaloy turning inserts, check holder compatibility and secure VNMG120404E-TM T9225 stock — eMail: info@metav-werkzeuge.com / Tel: +49 2822 7131930

Technical data

• Article number: 6780655
• SKU: 6780655-Tungaloy
• Manufacturer SKU: TUN6780655
• Label: VNMG120404E-TM T9225
• Model series: ISO‑Drehwendeschneidplatten
• Product designation: VNMG120404E-TM

Numbers / Core technical data

• Radius: 0.4 mm
• Plate size: 12 mm
• Plate thickness: 4.76 mm
• Lead/angle: 35°
• Clearance angle: 0°
• Hole: with hole (cylindrical hole)

Designs / Special features

• Material: carbide
• Coating / grade: T9225 (CVD‑coated carbide)
• Plate form: rhombic
• Chipbreaker: TM
• Typical application: turning (external and internal)
• System components: insert, holder/boring bar, underlay/clamping set, replacement screws

FAQ

What workpieces is this insert best suited to?
The VNMG120404E-TM T9225 insert is optimised for medium to heavy steel turning where toughness and wear resistance are both required; it performs well under slightly interrupted cuts and variable engagement.

How does the T9225 grade affect tool life?
The T9225 CVD coating increases abrasion resistance while the carbide substrate provides toughness, which together extend edge life and reduce frequency of index changes on the turning tool.

Which holder features must be checked for compatibility?
Ensure the holder matches the VNMG form, the plate size (12 mm), plate thickness (4.76 mm), fastening method and tolerance class; correct matching prevents run‑out and secures repeatable positioning.

What surface finish can be expected with a 0.4 mm corner radius?
A 0.4 mm corner radius offers a balance between edge strength and finish quality — it produces a reliable surface on general turning tasks while allowing higher feeds than very small radii.

Is this insert suitable for internal turning as well as external?
Yes, the insert’s geometry and standardised ISO format make it suitable for both external and internal turning when used with the appropriate boring bar and clamping hardware.

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.