TCGT 16T308 NS520 Wendeplatten - Tungaloy

Combining high-quality surface finish, predictable tool life and straightforward ISO compatibility, this cermet insert supports productive finishing operations and stable process control; order directly via Metav Werkzeuge or contact our consultants for application advice.

TCGT 16T308 NS520 Tungaloy turning insert — ISO triangular finishing insert

A TCGT16T308 NS520 insert for precision external and internal turning, optimised for finishing passes on steel.

• ISO triangular insert TCGT 16T308 NS520
• Cermet grade NS520 for finishing and light cuts
• 60° insert geometry with 0.8 mm corner radius
• Compatible with ISO turning toolholders, with hole

Achieve consistent surface finish and dimensional accuracy

The NS520 cermet grade is designed for finishing to light machining, delivering a fine and repeatable surface finish while keeping dimensional tolerances stable. Cermet is a ceramic–metal composite that combines high hardness with improved edge resistance compared with conventional carbides; this results in smoother cutting action and reduced burr formation during final passes. The insert’s 0.8 mm corner radius and 60° geometry favour stable contact conditions, which helps to maintain part accuracy on both external and internal turning operations.

Reduce tool changes with predictable wear and process stability

Thanks to the coated cermet composition and an even-wear behaviour, the cutting edge offers longer effective life during finishing cycles, lowering the frequency of regrinds or index changes. As an ISO-standardised indexable insert, it fits into compatible holders when form, relief angle, tolerance class, fastening method, size and thickness match — a standardised system that supports quick replacement and minimal downtime. The result is improved productivity and fewer unexpected interruptions in production.

Secure clamping and straightforward integration into existing setups

The triangular plate design with a cylindrical hole and single-sided countersink (40°–60°) ensures reliable clamping and correct seating in most ISO toolholders, reducing the chance of misalignment. The plate thickness of 3.97 mm and the 7° relief angle are important for selecting an appropriate holder and provide the mechanical stability needed for finishing. The single-sided chipbreaker supports controlled chip formation during light cuts; selecting the correct chipbreaker and grade for the workpiece material ensures safe, efficient machining.

For tailored guidance on integrating Tungaloy finishing inserts into existing turning cells and to arrange fast supply from Metav Werkzeuge, please contact our technical sales team at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6807714
• Manufacturer SKU: TUN6807714
• SKU: 6807714-Tungaloy
• Model series: ISO turning inserts
• Grade: NS520
• Manufacturer: Tungaloy

Core data

• Geometry angle: 60°
• Corner radius: 0.8 mm
• Relief angle: 7°
• Plate thickness: 3.97 mm
• Size (inscribed circle): 16 mm

Design and special features

• Material: cemented carbide body
• Cutting grade: NS520 (cermet / coated cermet)
• Chipbreaker: single-sided
• Hole style: cylindrical hole with single-sided countersink 40°–60°
• Plate form: triangular
• Application: turning (external and internal)

FAQ

What materials is this insert optimised for? The NS520 grade is formulated for finishing of steel; the TCGT16T308 NS520 Tungaloy insert is particularly suited to steel finishing where surface quality and dimensional control are priorities.

How does the cermet grade affect tool life and finish? Cermet grades such as NS520 combine ceramic hardness with metallic toughness, which enhances edge retention and provides a finer finish compared with standard carbide inserts, leading to predictable wear characteristics for the Tungaloy turning insert.

Which holders are compatible with this insert? Compatibility is determined by the insert’s form, relief angle (7°), tolerance class, fastening method, size (16 mm) and thickness (3.97 mm); the ISO-standard TCGT form fits matching ISO toolholders when these parameters are respected.

What is the purpose of the countersunk hole design? The cylindrical hole with a single-sided countersink (40°–60°) provides secure clamping and correct seating in standard clamping systems, improving stability for finishing operations with this Tungaloy insert.

Is this insert suitable for internal as well as external turning? Yes, the triangular ISO geometry and the single-sided chipbreaker make the insert suitable for both external and internal turning in finishing applications.

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.