CNMA 190616 T515 Wendeplatten - Tungaloy

Benefit from the combination of CVD-coated carbide T515 and a robust 1.6 mm corner radius for economical, reliable cast-iron turning; order directly via Metav Werkzeuge or consult our specialists for tailored application advice.

CNMA 190616 T515 — ISO turning insert (CNMA) for cast iron by Tungaloy

The CNMA 190616 T515 is an ISO-format rhombic indexable insert designed for efficient external and internal turning of cast iron, offering a strong cutting edge and good chip control.

• CVD-coated carbide grade T515
• ISO CNMA190616 rhombic 80° form
• 1.6 mm corner radius for robust edge
• 6.35 mm thickness with cylindrical hole

Efficient cast-iron machining with CVD-coated carbide

The CVD-coated carbide grade T515 is optimised for the economical machining of cast iron, combining wear resistance with consistent cutting performance. The CVD layer reduces flank wear under continuous cutting conditions, which translates into longer intervals between indexings and fewer tool changes. Because the cutting material is engineered for cast-iron properties, stable chip formation and predictable surface integrity are achieved, improving process reliability and lowering overall machining costs.

Designed for secure clamping and ISO compatibility

Compatibility with toolholders is determined by the insert’s form, rake angle, tolerance class, clamping and dimensions — all defined by the ISO format used for this series. The rhombic 80° geometry provides a large effective cutting edge and flexible approach angles, while the cylindrical hole and standard tolerance allow repeatable mounting in compatible CNMA holders. This means the insert can be mounted and secured with established holder systems, ensuring repeatable positioning and minimal set-up time.

Practical guidance for turning applications

The insert is intended for both external and internal turning operations; the absence of an integrated chipbreaker makes it suitable where customised chip control strategies are preferred or where rigid setups enable smooth swarf evacuation. Selection of a matching chipbreaker and the correct grade should be based on the workpiece stability, cutting interruptions and the desired cutting speed. When used under recommended conditions, the insert supports steady cutting and is particularly effective for continuous finishing passes on cast-iron components.

Productivity gains and process safety in daily use

By combining a robust 1.6 mm corner radius with a 6.35 mm plate thickness, the design increases edge strength and reduces the risk of premature chipping in heavier cuts. The ISO CNMA geometry offers versatile seating for varying depths of cut and feed rates, so cycle times can be optimised without compromising surface quality. For production environments seeking consistent results, the insert provides a sound balance between productivity and tool life, while compatibility with standard holders simplifies inventory and tool management.

Contact Metav Werkzeuge at info@metav-werkzeuge.com or +49 2822 7131930 for application advice and availability of the CNMA 190616 T515 insert.

Technical data

• Article number: 6747811

• SKU: 6747811-Tungaloy

• Manufacturer SKU: TUN6747811

Facts

• ISO designation: CNMA190616

• Corner radius: 1.6 mm

• Plate size: 19 mm

• Plate thickness: 6.35 mm

• Insert angle: 80°

• Rake/free angle: 0°

• Hole style: cylindrical hole

Special features

• Material: cemented carbide

• Coating: CVD-coated (grade T515)

• Geometry: rhombic CNMA, ISO-format

• Designed for: turning (external and internal)

• Chipbreaker: without integrated chipbreaker

• Compatibility: determined by form, rake angle, tolerance class, clamping, size and thickness

FAQ

Which materials is this insert best suited for?
The CNMA 190616 T515 insert (SKU 6747811-Tungaloy) is principally intended for machining cast iron, with the CVD-coated carbide grade T515 optimised for that material group.

Can the insert be used for internal turning as well as external turning?
Yes, the CNMA geometry and the ISO CNMA190616 format are suitable for both external and internal turning operations when used with compatible holders.

Is there an integrated chipbreaker on this insert?
This particular insert is supplied without an integrated chipbreaker, enabling bespoke chip control through the choice of holder, cutting parameters or secondary chip-control devices.

What are the benefits of the 1.6 mm corner radius?
A 1.6 mm corner radius provides a robust cutting edge that resists chipping under heavier depths of cut and contributes to consistent surface finish and predictable tool life.

How is holder compatibility ensured for ISO turning inserts?
Compatibility is achieved via standardised dimensions and tolerance classes; the insert’s form, free angle, clamping provisions, size and thickness must match the chosen ISO-format holder for reliable mounting and repeatable positioning.

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.