CNMG 120412 T9215 Wendeplatten - Tungaloy

Take advantage of the combination of CVD-coated carbide T9215, ISO-compliant geometry and a robust 1.2 mm corner radius for efficient, high‑productivity turning of medium steels; order the insert directly via Metav Werkzeuge or consult our team for application advice.

CNMG 120412 T9215 – Turning insert (ISO) by Tungaloy

The CNMG120412 T9215 is an ISO‑standard rhombic turning insert for external and internal turning, engineered for productive medium‑steel machining with an 80° included angle.

• CVD-coated carbide T9215 for medium steel
• ISO CNMG120412 rhombic insert, 80° angle
• 1.2 mm corner radius for robust edge
• Double-sided design with cylindrical hole

Consistent productivity through optimised grade and coating

The insert’s T9215 grade combines a CVD coating with a tough carbide substrate to deliver elevated wear resistance and reliable fracture toughness. For production environments that require sustained cutting performance on medium‑hard steels, this combination reduces edge wear and extends tool life. The chemical vapour deposition layer forms a hard, adherent surface that resists abrasive wear while the substrate maintains edge stability, which together enable longer cutting intervals and fewer indexings.

Geometry that improves cutting control and part quality

The rhombic CNMG shape with an 80° included angle and a 1.2 mm corner radius supports secure cutting forces and contributes to a stable tool tip. A larger corner radius distributes cutting loads, improving surface finish and reducing microchipping in continuous to mildly interrupted cuts. The double‑sided design offers economical indexing and the cylindrical hole ensures secure clamping in compatible holders; this standardised geometry simplifies tool management across ISO systems and supports repeatable component quality.

System integration and shop‑floor benefits

ISO standardisation of the insert format ensures compatibility with a wide range of external holders and boring bars when matched for form, relief angle, tolerance and thickness. The 4.76 mm plate thickness and rhombic outline offer predictable stiffness and allow the insert to be used in many common toolholder systems. Reduced downtime from fewer insert changes and predictable wear behaviour translate into measurable productivity gains and lower process variability in serial production.

Practical considerations for application choice

Select a matching chipbreaker and grade orientation depending on workpiece stability and machining type; the delivered chipbreaker is double‑sided, making it suitable for a range of cutting conditions. The 0° relief angle on this geometry supports neutral cutting action in profile turning and external finishing. For interrupted cuts, the toughness of the T9215 grade helps prevent edge failure, while continuous cutting benefits from the coating’s abrasion resistance.

For high‑productivity medium‑steel turning tasks, specify the Tungaloy CNMG120412 T9215 insert and contact Metav Werkzeuge for tailored recommendations and ordering via info@metav-werkzeuge.com or by phone at +49 2822 7131930

Technical data

• Article number: 6796028
• SKU: 6796028-Tungaloy
• Manufacturer SKU: TUN6796028
• Name: CNMG120412 T9215 Tungaloy-Wendeplatte

Core measurements

• Insert size: 12 mm
• Plate thickness: 4.76 mm
• Corner radius: 1.2 mm
• Included angle: 80°
• Relief angle: 0°

Design & special features

• Material: carbide (cemented carbide)
• Coating/type: CVD coating, grade T9215
• Geometry: rhombic CNMG
• Mounting: with cylindrical hole
• Chipbreaker: double-sided
• Application: turning (external and internal)
• Model series: ISO turning indexable inserts

FAQ

What materials is this insert best suited for?
The Tungaloy CNMG120412 T9215 insert is optimised for medium‑steel machining; the T9215 grade balances wear resistance and toughness for continuous to lightly interrupted cuts.

How does the 1.2 mm corner radius affect machining results?
A 1.2 mm corner radius increases edge strength and helps produce a smoother surface finish while reducing the likelihood of microchipping under steady cutting forces.

Is the geometry compatible with standard ISO toolholders?
Yes; the CNMG form follows ISO dimensions and will fit holders that match for shape, relief angle, tolerance class, fastening and thickness.

What benefits does the CVD coating provide?
The CVD coating imparts high abrasion resistance and thermal stability, resulting in longer tool life and more consistent performance on medium steels.

Can this insert be used for interrupted cuts?
The toughness of the T9215 grade makes the insert suitable for light to moderate interruptions; for severe interruptions, consider grades or geometries specifically rated for such conditions.

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.