CNMG 120408 T6215 Wendeplatten - Tungaloy

Benefit from the combination of CVD-coated carbide, precise 80° rhombic geometry and a 0.8 mm corner radius for dependable stainless-steel turning performance; order directly via Metav Werkzeuge or consult our technical advisors for selection and supply.

CNMG120408 T6215 indexable turning insert — CVD-coated carbide for stainless steels, 80° rhombic geometry (Tungaloy)

CNMG120408 T6215 is an ISO-form indexable turning insert designed for external and internal turning of stainless steels under stable to lightly interrupted cutting conditions

• ISO interchangeability for standard holders
• CVD-coated carbide for wear resistance
• Double-sided chipbreaker for chip control
• 0.8 mm corner radius for stronger edges

Consistent tool life and predictable performance for stainless turning

The CVD-coated carbide grade T6215 delivers enhanced wear resistance when machining stainless steels, providing a stable cutting edge under normal and slightly interrupted conditions. The coating reduces flank and crater wear, which in turn helps to maintain dimensional accuracy and surface finish over longer tool life. Thanks to the 80° rhombic geometry and the specified corner radius, the insert offers a balance between cutting-edge strength and surface quality, making it suitable for a wide range of turning operations where process reliability and repeatable results are required.

Compatibility and handling that simplify toolroom routines

Engineered to the ISO form, the indexable insert fits a broad selection of holders once form, clearance, tolerance class, attachment and size are matched. The cylindrical hole and the standard attachment points support quick indexing and secure clamping, while the 4.76 mm plate thickness and the 12 mm inscribed circle ensure mechanical stability in the toolholder. These features reduce setup time and support consistent seating in the holder stack. The design therefore supports efficient tool management and helps to streamline tool change procedures in production environments.

Reliable chip control and economical machining cycles

A double-sided chipbreaker provides controlled chip formation for most turning tasks in stainless steels, promoting safe evacuation and minimising recut of chips. The 0° clearance geometry specification complements the insert’s robustness, enabling predictable cutting forces and consistent surface integrity. Because the insert is reversible, the effective tool life per index is improved, offering economical use for batch production and single-part manufacturing alike. The system approach — insert, matching external holder or boring bar, shim/clamp and spare screws — supports straightforward integration into existing machining processes with measurable productivity benefits. The CNMG120408 T6215 insert is a practical choice where process security and tool longevity are priorities.

For reliable supply and expert selection of Tungaloy inserts, contact Metav Werkzeuge for tailored advice and order support — info@metav-werkzeuge.com / +49 2822 7131930

Technical Data

• Article number: 6875277
• Manufacturer SKU: TUN6875277
• SKU: 6875277-Tungaloy
• Model series: ISO turning indexable inserts
• Designation: CNMG120408 T6215

Facts

• Corner radius: 0.8 mm
• Thickness: 4.76 mm
• Inscribed circle/size: 12 mm
• Included angle: 80°
• Clearance angle: 0°

Special features

• Cemented carbide substrate
• CVD coating, grade T6215
• Double-sided chipbreaker
• Rhombic plate form
• Cylindrical hole
• Intended application: turning (external and internal)
• Compatible with ISO-standard holders

FAQ

Which materials is this insert best suited for? The CNMG120408 T6215 insert is optimised for machining stainless steels, offering wear-resistant performance under stable to lightly interrupted cutting conditions.

Can the insert be used for both external and internal turning? Yes, the ISO-form geometry and 80° rhombic shape make the insert suitable for both external and internal turning applications when paired with an appropriate holder.

What is the corner radius and how does it affect performance? The insert has a 0.8 mm corner radius, which increases edge strength and helps to achieve a good surface finish without compromising durability.

Is this a reversible insert and what does that imply? The insert is double-sided with a chipbreaker on both sides; this reversibility allows for economical use by indexing to a fresh cutting edge when required.

Which system components are needed to assemble a working tool? A compatible external holder or boring bar, a suitable shim/clamp set and the correct screws are required to assemble a ready-to-run tool system with this 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.