CNMG 120412 T9205 Wendeplatten - Tungaloy

Taking advantage of a CVD-coated cemented carbide grade designed for productive steel turning and a robust 1.2 mm corner radius results in reliable tool life and consistent surface quality in stable, higher-speed operations; order inserts or ask Metav Werkzeuge's consultants for application-specific advice.

CNMG 120412 T9205 turning insert – Tungaloy

The CNMG120412 T9205 Tungaloy insert is an ISO‑standard rhombic turning insert engineered for productive external and internal turning of steel under stable machining conditions.

• ISO‑standard rhombic insert CNMG
• CVD-coated cemented carbide T9205
• 1.2 mm corner radius for edge strength
• Double-sided chipbreaker, cylindrical hole

Optimised cutting performance for productive turning

The CVD surface treatment on this cemented carbide grade provides a wear‑resistant layer that extends usable edge life at elevated cutting speeds, so machining cycles remain productive without frequent index changes. Designed specifically for turning operations in steel, the coated substrate maintains flank and crater wear resistance while permitting reliable material removal rates. This translates into fewer tool changes, predictable machining times and improved process stability in batch or single‑piece production.

Stable edges and chip control for consistent finishes

A 1.2 mm corner radius combined with a double‑sided chipbreaker produces stable cutting edges that resist chipping and vibrational damage during heavier cuts. The rhombic form with an 80° geometry increases radial support for interrupted or continuous cuts, improving surface finish and dimensional consistency. These design choices help to reduce rework and deliver the repeatable component quality expected in precision turning applications.

ISO compatibility and secure clamping for easy integration

Conforming to ISO dimensions and featuring a cylindrical hole for positive locating, the insert fits standard external holders, boring bars and clamping sets when the holder's form, clearance angle and tolerance class match the insert dimensions. With an insert size of 12 mm and a thickness of 4.76 mm, the component integrates into common tool systems alongside a matching shim and replacement screw. This simplifies toolroom logistics and supports straightforward tool change procedures on conventional and CNC lathes.

Contact Metav Werkzeuge for tailored application guidance on Tungaloy turning inserts and to discuss compatible holders and grade selection; telephone +49 2822 7131930 or email info@metav-werkzeuge.com

Technical data

• Article number: 6785691
• SKU: 6785691-Tungaloy
• Manufacturer SKU: TUN6785691
• Model series: ISO-Drehwendeschneidplatten
• Designation: CNMG120412
• Grade: T9205
• Material: Cemented carbide
• Coating: CVD-coated

Core measurements

• Insert size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 1.2 mm
• Included hole: cylindrical hole
• Clearance angle: 0°
• Principal angle: 80°

Special features

• Rhombic insert form
• Double-sided chipbreaker
• ISO-standard compatibility
• Intended for productive steel turning under stable conditions
• System components: insert, holder/boring bar, shim/clamping set, replacement screws

FAQ

What materials is this insert suited for? The CNMG120412 T9205 Tungaloy insert is formulated primarily for machining steel and performs best under stable cutting conditions with appropriate holder support.

How does the T9205 grade improve machining performance? Tungaloy's T9205 is a CVD-coated cemented carbide grade that increases wear resistance at higher cutting speeds, helping the insert maintain edge life and consistent cutting performance.

What clamping options are required for secure use? The rhombic insert with a cylindrical hole requires a compatible ISO holder or boring bar, a matching shim or clamp pad and the correct replacement screw to ensure secure seating and repeatable positioning.

Can this insert be used for internal and external turning? Yes, the insert’s geometry and chipbreaker design make it suitable for both external and internal turning applications when paired with the correct holder and setup.

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.