TPGT 130304 NS520 Wendeplatten - Tungaloy

Take advantage of the combination of precise finishing performance, robust cemented carbide construction and ISO compatibility for reliable turning operations; order the insert directly via Metav Werkzeuge or ask the consultants for advice.

TPGT 130304 NS520 Tungaloy — ISO triangular turning insert for finishing, 60° included angle

The TPGT 130304 NS520 is an ISO-standard triangular turning insert designed for finishing to light turning of steel, providing consistent surface quality and dimensional accuracy.

• Cermet grade NS520 for fine finishing
• Triangular 60° form, 0.4 mm nose radius
• With cylindrical hole and single-side countersink
• ISO-standard 3.18 mm plate thickness

Precision surface quality for finishing operations

The Tungaloy insert delivers a focus on surface finish and repeatable part tolerances through its cermet-based grade. Its NS520 composition, engineered for finishing to light machining, promotes stable, even wear and reduces micro-chipping, which together support consistent meeting of tolerance bands and improved component appearance. This is especially useful for applications where enhanced dimensional accuracy and a superior surface are required after roughing. The insert’s geometry and the single-sided chipbreaker further aid controlled chip flow, minimising surface defects.

Secure seating and universal ISO compatibility

The triangular 60° form and standard ISO geometry ensure compatibility with a wide range of external holders and boring bars; the insert’s fit is determined by form, relief angle, tolerance class, attachment style, size and thickness. The 11° relief angle and 3.18 mm plate thickness provide a stable clamp under moderate cutting forces, while the cylindrical hole with one-sided countersink (40°–60°) enables reliable fixation and repeatable indexing. These characteristics reduce set-up time and support uninterrupted production runs when using matched holders.

Material advantages of the NS520 cermet grade

The cermet NS520 is optimised for steels where the priority is an outstanding finished surface and uniform wear behaviour rather than aggressive metal removal rates. By combining the toughness of cemented carbide with cermet surface properties, this grade maintains a sharp cutting edge for longer in finishing passes, delivering improved micrometre-level accuracy and consistent part-to-part quality. For shops aiming for high first-pass yields in precision turning, this insert helps reduce rework and improve throughput.

Application guidance and process stability

Intended primarily for external and internal turning in finishing to light-duty cuts, the insert is most effective when paired with the correct holder rigidity, stable clamping and well-tuned cutting parameters. The 0.4 mm nose radius supports fine profile control and a good balance between edge strength and surface integrity. Where process reliability is required, select the chipbreaker and grade match to the workpiece material and machining stability; this approach maximises tool life and maintains consistent component quality across batch production.

For consistent finishing performance choose the Tungaloy NS520 inserts and contact Metav Werkzeuge for specific holder compatibility or to request the TUN6808942 item—email info@metav-werkzeuge.com or call +49 2822 7131930 to discuss application details

Technical Data

• Manufacturer item no.: 6808942
• SKU: 6808942-Tungaloy
• Manufacturer SKU: TUN6808942

Facts

• Plate size: 13 mm
• Thickness: 3.18 mm
• Nose radius: 0.4 mm
• Relief angle / free angle: 11°
• Included angle: 60°

Special features

• Material: cemented carbide
• Grade/coating: NS520 (cermet / coated cermet)
• Plate form: triangular
• Hole: with hole
• Hole style: cylindrical hole + one-sided countersink (40°–60°)
• Chipbreaker: single-sided
• Typical application: turning (finishing to light machining)
• Model series: ISO turning inserts
• Compatible with ISO-standard external holders and boring bars

FAQ

What materials is this insert suited for? The NS520 cermet grade is formulated primarily for the finishing to light machining of steel, so the TPGT 130304 NS520 insert is recommended where a high-quality surface finish and dimensional accuracy are required.

Which geometry does the insert have and what does it mean for applications? The insert uses a triangular 60° geometry with a 0.4 mm nose radius and 11° relief angle, providing stable seating and fine-profile control suitable for finishing passes in turning operations.

How is the insert clamped and indexed in a holder? The insert is supplied with a cylindrical hole and single-side countersink (40°–60°), allowing secure clamping and repeatable indexing when used with compatible ISO-standard holders.

What advantages does the NS520 grade provide compared with conventional carbide? NS520, a cermet-based grade, offers a sharper, more wear-resistant cutting edge in finishing, promoting uniform flank wear and improved surface integrity across production runs.

Is this insert suitable for internal as well as external turning? Yes, the insert’s ISO-standard form and single-sided chipbreaker make it suitable for both external and internal turning operations in finishing to light machining.

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.