CNMG 120408 T9205 Wendeplatten - Tungaloy

Take advantage of the combination of CVD-coated carbide in the T9205 grade, a robust CNMG geometry and the 0.8 mm corner radius for dependable edge life and productive steel turning; Order the CNMG120408 T9205 insert directly via Metav Werkzeuge or ask our consultants if needed.

CNMG120408 T9205 ISO turning insert – CVD-coated carbide, 0.8 mm corner radius (Tungaloy)

The CNMG120408 T9205 is an ISO-standard rhombic turning insert optimised for productive external and internal turning of steel under stable conditions, offering high wear resistance and repeatable performance

• CVD-coated carbide T9205 for high wear resistance
• Rhombic CNMG geometry, 80° cutting angle
• 0.8 mm corner radius for robust edge strength
• Double-sided chipbreaker, cylindrical centre hole

Productive steel turning with a wear-resistant grade

The combination of a CVD-coated top layer and a carbide substrate in the T9205 grade produces a tool that resists abrasive wear and preserves edge geometry during longer runs. This means more consistent component dimensions and fewer indexings per job, which translates into lower cycle-time variation and improved process stability. For users seeking a balance between economy and lifetime, the coating supports higher cutting speeds while the substrate maintains toughness; the net result is a reliable insert that supports steady production on a range of steels.

Geometry designed for secure edges and surface quality

The CNMG rhombic form with an effective 80° cutting angle and a 0.8 mm corner radius provides a robust cutting edge that stands up to interrupted cuts and variable feed conditions. A larger corner radius increases edge strength and reduces the risk of chipping, supporting a consistent surface finish and dimensional control. In practice, this geometry helps maintain tool life in medium to heavy turning tasks while still permitting fine surface quality when set up with appropriate feeds and speeds.

Chip control and practical handling to reduce downtime

Equipped with a double-sided chipbreaker, the insert promotes controlled chip formation across a range of cutting depths, which reduces the likelihood of long, entangling swarf and helps protect both the workpiece and toolholder. The presence of a cylindrical centre hole allows secure clamping and easy indexing of the second cutting face, enabling quick rotation and replacement without complex setup. These design choices help streamline changeovers and reduce unproductive machine time.

System compatibility and application guidance

As an ISO-standard turning insert, compatibility with the selected toolholder depends on form, clearance angle, tolerance class, fixation method, size and thickness. The insert's 12 mm inscribed circle and 4.76 mm thickness suit common CNMG holders; the 0° clearance angle must be matched to the holder geometry to ensure correct edge presentation. When integrating into an existing tool system, verify holder seating and screw type and consider the whole system—insert, clamp, and backup screws—to achieve repeatable clamping and optimal cutting conditions.

For reliable production performance with Tungaloy's T9205 grade, contact Metav Werkzeuge for expert advice on holder compatibility and swift supply.

Technical data

• Article number: 6785787
• Manufacturer SKU: TUN6785787
• SKU: 6785787-Tungaloy
• ISO designation: CNMG120408
• Model series: ISO turning inserts

Facts

• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Clearance angle: 0°
• Cutting angle: 80°

Special features

• Material: carbide
• Grade/coating: T9205, CVD-coated
• Insert form: rhombic (CNMG)
• Hole: with centre hole, cylindrical hole
• Chipbreaker: double-sided
• Typical application: turning (external and internal)

FAQ

What materials is this insert best suited for?
The insert is optimised for productive turning of steel; the T9205 grade and CVD-coated carbide combination provides wear resistance suitable for a broad range of steels under stable cutting conditions.

Can the insert be indexed to use both cutting faces?
Yes, the insert features a cylindrical centre hole and is double-sided; the design allows secure clamping and rotation to the second cutting face when the first edge is worn.

Which holder types are compatible with this ISO insert?
Compatibility depends on the holder's form, tolerance class, fixation method, size and thickness; holders designed for CNMG inserts with a 12 mm inscribed circle and 4.76 mm thickness are suitable when clamping geometry matches the insert.

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.