TNMA 160408 NS520 Wendeplatten - Tungaloy

The TNMA160408 NS520 grade combines ISO‑standard compatibility, a cermet cutting grade tuned for finishing, and a compact triangular 60° form for stable cutting performance; order directly via Metav Werkzeuge or consult the experts for optimal holder pairing.

TNMA 160408 NS520 Tungaloy turning insert — cermet grade for finishing, triangular 60° geometry

A TNMA160408 NS520 turning insert designed for ISO‑standard turning applications, optimised for finishing and light‑duty machining of steel.

• ISO‑conforming TNMA form for broad compatibility
• NS520 cermet for high surface quality
• Triangular 60° geometry for secure engagement
• Cylindrical hole for consistent clamping

Improved surface finish through a dedicated cermet grade

The NS520 cutting grade is a cermet variant developed for finishing to light machining of steel, prioritising surface quality and dimensional stability. The material combination yields a predictable, even wear pattern that helps maintain tolerances over longer tool life. In practice, this means fewer workpiece rejections and a more consistent finish when processing external or internal turning operations. The insert’s polished edges and the absence of an integrated chipbreaker help produce a clean cutting action in light cuts, while the moderate 0.8 mm corner radius supports fine contouring and reduced vibration.

Reliable system fit and secure clamping for repeatable results

Designed as an ISO‑standard indexable insert, compatibility with holders and boring bars is controlled by form, clearance angle, tolerance class, fastening and thickness. The triangular 60° geometry provides three effective cutting corners per insert, and the cylindrical hole ensures reproducible clamping in standard TNMA seats. The insert features a 0° relief angle which, when paired with an appropriate holder, offers a neutral cutting attitude suited to stable turning setups. Stated dimensions such as the 16 mm nominal size and 4.76 mm thickness support straightforward integration into established tool systems.

Practical recommendations to increase process efficiency

Best used for turning of steel in finishing passes, the insert performs well when the grade choice matches the workpiece material and the machining strategy: select a suitable chipbreaker if heavy chip control is required, since this variant is supplied without a chipbreaker. The ISO plate is part of an overall system comprising the insert, matching external holder or boring bar, clamping pad and replacement screws; correct matching reduces setup time and increases spindle utilisation. For short‑run production or precision components, the combination of NS520 material behaviour and precise ISO geometry supports high first‑pass quality and predictable tool changes.

For precise finishing applications with Tungaloy’s NS520 grade, contact Metav Werkzeuge for tailored advice and fast supply — assistance by phone or email is available to ensure the correct holder and assembly are selected.

Technical data

• Article number: 6808268
• Manufacturer SKU: TUN6808268
• Label / name: TNMA160408 NS520 Tungaloy‑Wendeplatte

Facts

• Size: 16 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Insert angle: 60°
• Relief angle: 0°
• Hole: with cylindrical hole

Special features

• Model series: ISO‑indexable turning inserts
• Grade: NS520 (cermet / coated cermet)
• Application: turning (finishing to light machining of steel)
• Plate shape: triangular
• Chipbreaker: none
• Compatibility: ISO‑standard holders and boring bars

FAQ

What machining tasks suit this insert best?
The TNMA160408 NS520 insert is intended for turning tasks focused on finishing and light machining of steel, delivering improved surface quality and dimensional consistency.

Is the insert compatible with standard ISO holders?
Yes, the TNMA160408 follows ISO geometry; compatibility depends on holder form, fastening and thickness, and the cylindrical hole supports reliable clamping.

Does this insert include a chipbreaker?
This variant is supplied without a chipbreaker; for aggressive chip control select a matching chipbreaker style and holder.

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.