VNMA 160408 NS520 Wendeplatten - Tungaloy

Benefit from the NS520 cermet’s focus on surface finish and consistent wear together with the standardized VNMA geometry for straightforward integration into ISO toolholder systems; order the VNMA 160408 NS520 directly via Metav Werkzeuge or consult our advisors for application-specific recommendations.

VNMA 160408 NS520 ISO turning insert by Tungaloy — cermet grade for finishing, 0.8 mm corner radius

VNMA 160408 NS520 is an ISO rhombic turning insert engineered for finishing to light machining of steel and compatible with standard ISO holders for external and internal turning operations

• Rhombic ISO insert VNMA160408 NS520
• Cermet grade NS520 for finish machining
• 0.8 mm corner radius for superior surface quality
• Cylindrical central hole, 35° approach angle

Consistent surface quality from a cermet designed for finishing

The NS520 grade is a cermet formulation optimised for the final passes on steel where surface finish and dimensional accuracy are primary concerns. Its composition promotes uniform wear, which reduces variation between successive inserts and helps maintain process stability during serial production. For finishing cuts, the combination of the fine-grain cermet and the specified corner radius delivers lower cutting forces and improved part appearance compared with standard grades. This makes the insert particularly suitable for applications where tight tolerances and reliable repeatability are required.

ISO geometry and holder compatibility for predictable integration

The rhombic VNMA form follows ISO standards and is supplied in the 16 mm size with a plate thickness of 4.76 mm, facilitating straightforward matching with ISO external holders or boring bars. Compatibility is determined by insert form, clearance angle (0°), tolerance class, fastening method, size and thickness. The central cylindrical hole and the standard fixing arrangement support secure clamping and repeatable seating. When selecting the matching holder and clamp set, ensure the toolholder geometry accepts the 35° approach angle and the 0.8 mm corner radius for optimal results.

Practical benefits in everyday turning operations

Designed for turning, both external and internal, the insert performs best in finishing to light machining of steel where improved surface integrity is required. The 0.8 mm corner radius balances edge strength with the ability to produce fine surface finishes; a larger radius can increase tool life while maintaining form on the workpiece. The absence of a chipbreaker on this grade emphasises a smooth cutting edge and is suited to stable machining conditions and controlled chip evacuation; select cutting parameters and coolant strategy that match the material and setup to exploit these advantages.

System approach and ease of maintenance

The recommended system comprises the ISO turning insert, a compatible external holder or boring bar, a shim/clamp set and replacement screws for maintenance. Using standardized components simplifies stockkeeping and reduces downtime during tool changes. The insert’s carbide substrate provides robust edge support, while the cermet coating characteristics focus on finishing performance; replacement is straightforward and repeatability is assured through the standardized seat and fastener arrangement. For serial production, this combination promotes predictable tool life and consistent part quality.

For fast procurement or application advice on the VNMA 160408 NS520 from Tungaloy, contact Metav Werkzeuge — email info@metav-werkzeuge.com or call +49 2822 7131930 for tailored recommendations and ordering assistance

Technical data

• Article number: 6809416
• Manufacturer SKU: TUN6809416
• SKU: 6809416-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Label: VNMA160408 NS520

Core dimensions

• Size: 16 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Clearance angle: 0°
• Approach/lead angle: 35°

Special features

• Material: carbide
• Grade: NS520 (cermet)
• Plate shape: rhombic
• Central hole: cylindrical
• Chipbreaker: none
• Typical application: external and internal turning; finishing to light machining of steel
• System components: ISO insert, matching holder/boring bar, shim/clamp set, replacement screws
• Compatibility determined by: form, clearance angle, tolerance class, fastening, size and thickness

FAQ

What material is the insert best suited for?
The VNMA 160408 NS520 is formulated as a cermet grade optimised for steel finishing and light machining where surface quality and dimensional control are crucial.

Will the insert fit existing ISO VNMA holders?
Compatibility depends on holder geometry and tolerance class; the VNMA 160408 NS520 matches holders designed for 16 × 4.76 mm rhombic inserts with a cylindrical central hole and a 35° approach angle.

Does this insert include a chipbreaker?
This variant is supplied without a chipbreaker, which offers a smooth cutting edge suited to stable finishing operations; machining parameters and chip control should be adapted accordingly.

How does the 0.8 mm corner radius affect performance?
A 0.8 mm corner radius increases edge strength relative to finer radii and helps achieve a consistent surface finish while offering improved wear resistance on finishing passes.

Which SKU identifies this exact item?
The product is listed as SKU 6809416-Tungaloy and carries the manufacturer article number 6809416 for clear identification.

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.