CNMG 120412 T6215 Wendeplatten - Tungaloy

High wear resistance and stable chip control are delivered by the combination of a CVD-coated carbide grade T6215 and a robust geometry, making this insert well suited to turning stainless steel under stable to slightly interrupted conditions. Order the CNMG120412 T6215 Tungaloy turning insert directly via Metav Werkzeuge or consult our specialists if further application advice is required.

CNMG 120412 T6215 — ISO CNMG turning insert by Tungaloy for stainless turning, CVD-coated carbide, 1.2 mm radius

CNMG120412 T6215 Tungaloy-Wendeplatte is an ISO‑standard indexable insert designed for external and internal turning where wear resistance and reproducible performance are prioritised

• CVD-coated carbide grade T6215
• ISO CNMG geometry, 80° lead angle
• 1.2 mm corner radius for edge strength
• Double-sided chipbreaker with cylindrical hole

Durable grade and coating for consistent tool life

The CVD-coated carbide T6215 provides a wear‑resistant cutting edge tailored for machining stainless steel in production contexts where repeatability matters. The CVD layer improves thermal and abrasive resistance, which translates into longer edge life and fewer insert changes during a shift. As an ISO CNMG insert, the component fits established negative holders where compatibility is governed by form, clearance angle, tolerance class, clamping method, size and thickness, allowing predictable integration into existing toolrooms and turning centres.

Geometry that balances strength and surface finish

A 1.2 mm corner radius together with an 80° lead angle and 4.76 mm thickness increases edge strength and helps maintain surface integrity on interrupted cuts. The insert’s double-sided chipbreaker and cylindrical hole ensure stable clamping and effective chip control, reducing vibration and improving finish on both external and internal turning operations. For practical decision‑making: a larger corner radius gives longer edge durability at the expense of slightly higher cutting forces, while the 0° clearance favours repeatable insert seating in standard CNMG holders.

System approach and process guidance for production use

This indexable plate is part of a system comprising an ISO insert, a matching external holder or boring bar, a seat/ clamping kit and replacement screws. Selecting the correct chipbreaker and grade for workpiece condition and machine stability is crucial; the presented grade is optimised for stainless steel under stable to lightly interrupted cutting. For demanding batch production the insert delivers efficiency through fewer tool changes and reliable surface quality, supporting a consistent production flow while simplifying inventory management.

For application-specific recommendations on Tungaloy CNMG inserts and to coordinate delivery via Metav Werkzeuge, contact Metav Werkzeuge for tailored advice and availability at info@metav-werkzeuge.com or by telephone on +49 2822 7131930.

Technical Data

• Article number: 6944571
• Manufacturer SKU: TUN6944571
• SKU: 6944571-Tungaloy
• Model series: ISO turning indexable inserts
• Material: carbide, CVD-coated
• Grade: T6215
• Shape: rhombic (CNMG)

Facts

• Corner radius: 1.2 mm
• Size: 12 mm
• Thickness: 4.76 mm
• Lead angle: 80°
• Clearance angle: 0°
• Hole style: cylindrical

Special features

• Double-sided chipbreaker
• CVD coating for improved wear resistance
• Compatible with standard CNMG negative holders
• Suited for stainless steel turning under stable to slightly interrupted conditions

FAQ

Is the insert compatible with standard CNMG holders?
Yes. The CNMG120412 T6215 insert conforms to ISO CNMG geometry and is compatible with standard negative CNMG holders when the holder’s form, clearance, tolerance and clamping method match the insert dimensions.

Which materials is this grade intended for?
The T6215 grade is designed as a wear‑resistant option for machining stainless steel and performs best under stable to lightly interrupted cutting conditions.

Can the insert be used for internal turning as well as external turning?
Yes. The geometry and chip control features make this indexable plate suitable for both external and internal turning applications when used with the appropriate holder or boring bar.

What components form the recommended tool system?
The system typically comprises the ISO insert, a matching external holder or boring bar, a seat/clamping kit and replacement screws as required for secure and repeatable assembly.

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.