CNMG 120404 T9205 Wendeplatten - Tungaloy

Benefit from a robust combination of CVD‑coated carbide in grade T9205, ISO CNMG geometry and a 0.4 mm nose radius that delivers predictable wear behaviour and consistent surface finish in productive turning operations. Order original inserts through Metav Werkzeuge or request application advice from their technical team.

CNMG120404 T9205 Tungaloy indexable turning insert – CVD‑coated carbide, 0.4 mm radius for turning

The CNMG120404 T9205 Tungaloy insert is an ISO‑standard rhombic turning insert designed for external and internal turning, offering a double‑sided chipbreaker and a cylindrical hole for secure fastening in ISO‑compatible holders.

• CVD‑coated carbide grade T9205
• ISO CNMG120404 rhombic insert
• 0.4 mm nose radius for fine finishing
• Double‑sided chipbreaker with cylindrical hole

Maximise productivity with wear‑resistant CVD coating

The CVD‑coated carbide of grade T9205 is engineered for productive machining of steel, enabling higher cutting speeds under stable conditions while maintaining edge integrity. The hard, wear‑resistant coating reduces flank and crater wear, which results in longer intervals between index changes and a lower cost per finished part. In practice, this means more consistent cycle times and less unplanned downtime in series production where throughput and repeatability are critical.

Reliable geometry and simple holder compatibility

The insert conforms to the ISO CNMG120404 form with an 80° principal cutting angle and a 0° free angle as specified, ensuring compatibility with a wide range of external holders and boring bars. With a plate thickness of 4.76 mm and a nominal size of 12 mm, the rhombic shape and the cylindrical hole provide secure clamping and repeatable seating. Compatibility to a specific holder is governed by form, clearance angle, tolerance class, fastening method, dimension and thickness; selecting the correct holder and clamping kit ensures optimal performance and safe operation.

Controlled chip formation and surface quality

The double‑sided chipbreaker combined with the 0.4 mm nose radius offers a balanced compromise between surface finish and load capacity. For medium to light cuts where surface integrity matters, the fine nose radius contributes to a consistently smooth finish, while the chipbreaker promotes predictable chip control across a range of cutting conditions. Match the chipbreaker type and grade to the workpiece material and the machine‑tool stability to exploit the full benefit of the tooling system.

Economic benefits across serial turning operations

Designed for production turning, the insert supports repeatable results and easy index changes, which reduces setup time and improves overall tool life predictability. In shopfloor terms, this translates into lower unit machining costs and fewer interruptions for tool management. For tailored recommendations on grade selection or holder pairing, Metav Werkzeuge can provide technical guidance and supply original Tungaloy inserts that meet industrial quality standards.

Contact Metav Werkzeuge for tailored application advice on Tungaloy CNMG120404 T9205 inserts and to secure original stock via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6785679
• Manufacturer SKU: TUN6785679
• Label: CNMG120404 T9205 Tungaloy‑Wendeplatte
• Model series: ISO‑Drehwendeschneidplatten
• Application: Drehen

Facts

• Geometry: CNMG120404
• Principal angle: 80°
• Nose radius: 0.4 mm
• Thickness: 4.76 mm
• Size: 12 mm
• Free clearance angle: 0°
• Hole: with cylindrical hole

Special features

• Material: carbide
• Grade/coating: T9205 (CVD‑coated)
• Chipbreaker: double‑sided
• Shape: rhombic
• System setup: ISO insert, matching external holder or boring bar, backup shim/clamping set and replacement screws

FAQ

What materials is this insert suitable for?
The CNMG120404 T9205 insert is optimised for productive machining of steel and is recommended where stable cutting conditions and higher cutting speeds are required.

How does the T9205 grade affect tool life?
Tungaloy’s T9205 grade combines a wear‑resistant CVD coating with a robust carbide substrate to improve edge stability and extend in‑service life under appropriate cutting parameters.

Which geometrical data are decisive for holder compatibility?
Holder compatibility depends on the insert form (CNMG), free clearance angle, tolerance class, fastening method, size and thickness; the CNMG120404 form with a cylindrical hole ensures secure clamping in standard ISO holders.

Is the nose radius suitable for finishing passes?
The 0.4 mm nose radius provides a fine compromise between cutting edge strength and surface quality, making it suitable for finishing and semi‑finishing operations.

Are these original Tungaloy inserts supplied with identification data?
The insert is supplied as original Tungaloy material and can be identified by article number 6785679 and manufacturer SKU TUN6785679 in inventory systems.

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.